diff --git a/services/track-changes/app/coffee/UpdatesManager.coffee b/services/track-changes/app/coffee/UpdatesManager.coffee
index ad6a583979..fa4016f632 100644
--- a/services/track-changes/app/coffee/UpdatesManager.coffee
+++ b/services/track-changes/app/coffee/UpdatesManager.coffee
@@ -68,53 +68,74 @@ module.exports = UpdatesManager =
 				logger.log {project_id, doc_id, orig_v: lastCompressedUpdate?.v, new_v: result.v}, "inserted updates into pack"	if result?
 				callback()
 
-	REDIS_READ_BATCH_SIZE: 100
-	processUncompressedUpdates: (project_id, doc_id, callback = (error) ->) ->
+	# Check whether the updates are temporary (per-project property)
+	_prepareProjectForUpdates: (project_id, callback = (error, temporary) ->) ->
 		UpdateTrimmer.shouldTrimUpdates project_id, (error, temporary) ->
 			return callback(error) if error?
-			MongoManager.backportProjectId project_id, doc_id, (error) ->
+			callback(null, temporary)
+
+	# Check for project id on document history (per-document property)
+	_prepareDocForUpdates: (project_id, doc_id, callback = (error) ->) ->
+		MongoManager.backportProjectId project_id, doc_id, (error) ->
+			return callback(error) if error?
+			callback(null)
+
+	# Apply updates for specific project/doc after preparing at project and doc level
+	REDIS_READ_BATCH_SIZE: 100
+	processUncompressedUpdates: (project_id, doc_id, temporary, callback = (error) ->) ->
+		# get the updates as strings from redis (so we can delete them after they are applied)
+		RedisManager.getOldestDocUpdates doc_id, UpdatesManager.REDIS_READ_BATCH_SIZE, (error, docUpdates) ->
+			return callback(error) if error?
+			length = docUpdates.length
+			# parse the redis strings into ShareJs updates
+			RedisManager.expandDocUpdates docUpdates, (error, rawUpdates) ->
 				return callback(error) if error?
-				# get the updates as strings from redis (so we can delete them after they are applied)
-				RedisManager.getOldestDocUpdates doc_id, UpdatesManager.REDIS_READ_BATCH_SIZE, (error, docUpdates) ->
+				logger.log project_id: project_id, doc_id: doc_id, rawUpdates: rawUpdates, "retrieved raw updates from redis"
+				UpdatesManager.compressAndSaveRawUpdates project_id, doc_id, rawUpdates, temporary, (error) ->
 					return callback(error) if error?
-					length = docUpdates.length
-					# parse the redis strings into ShareJs updates
-					RedisManager.expandDocUpdates docUpdates, (error, rawUpdates) ->
+					logger.log project_id: project_id, doc_id: doc_id, "compressed and saved doc updates"
+					# delete the applied updates from redis
+					RedisManager.deleteAppliedDocUpdates project_id, doc_id, docUpdates, (error) ->
 						return callback(error) if error?
-						logger.log project_id: project_id, doc_id: doc_id, rawUpdates: rawUpdates, "retrieved raw updates from redis"
-						UpdatesManager.compressAndSaveRawUpdates project_id, doc_id, rawUpdates, temporary, (error) ->
-							return callback(error) if error?
-							logger.log project_id: project_id, doc_id: doc_id, "compressed and saved doc updates"
-							# delete the applied updates from redis
-							RedisManager.deleteAppliedDocUpdates project_id, doc_id, docUpdates, (error) ->
-								return callback(error) if error?
-								if length == UpdatesManager.REDIS_READ_BATCH_SIZE
-									# There might be more updates
-									logger.log project_id: project_id, doc_id: doc_id, "continuing processing updates"
-									setTimeout () ->
-										UpdatesManager.processUncompressedUpdates project_id, doc_id, callback
-									, 0
-								else
-									logger.log project_id: project_id, doc_id: doc_id, "all raw updates processed"
-									callback()
+						if length == UpdatesManager.REDIS_READ_BATCH_SIZE
+							# There might be more updates
+							logger.log project_id: project_id, doc_id: doc_id, "continuing processing updates"
+							setTimeout () ->
+								UpdatesManager.processUncompressedUpdates project_id, doc_id, temporary, callback
+							, 0
+						else
+							logger.log project_id: project_id, doc_id: doc_id, "all raw updates processed"
+							callback()
 
+	# Process updates for a doc when we flush it individually
 	processUncompressedUpdatesWithLock: (project_id, doc_id, callback = (error) ->) ->
-		LockManager.runWithLock(
-			"HistoryLock:#{doc_id}",
-			(releaseLock) ->
-				UpdatesManager.processUncompressedUpdates project_id, doc_id, releaseLock
-			callback
-		)
+		UpdatesManager._prepareProjectForUpdates project_id, (error, temporary) ->
+			return callback(error) if error?
+			UpdatesManager._processUncompressedUpdatesForDocWithLock project_id, doc_id, temporary, callback
 
+
+	# Process updates for a doc when the whole project is flushed (internal method)
+	_processUncompressedUpdatesForDocWithLock: (project_id, doc_id, temporary, callback = (error) ->) ->
+		UpdatesManager._prepareDocForUpdates project_id, doc_id, (error) ->
+			return callback(error) if error?
+			LockManager.runWithLock(
+				"HistoryLock:#{doc_id}",
+				(releaseLock) ->
+					UpdatesManager.processUncompressedUpdates project_id, doc_id, temporary, releaseLock
+				callback
+			)
+
+	# Process all updates for a project, only check project-level information once
 	processUncompressedUpdatesForProject: (project_id, callback = (error) ->) ->
 		RedisManager.getDocIdsWithHistoryOps project_id, (error, doc_ids) ->
 			return callback(error) if error?
-			jobs = []
-			for doc_id in doc_ids
-				do (doc_id) ->
-					jobs.push (callback) ->
-						UpdatesManager.processUncompressedUpdatesWithLock project_id, doc_id, callback
-			async.parallelLimit jobs, 5, callback
+			UpdatesManager._prepareProjectForUpdates project_id, (error, temporary) ->
+				jobs = []
+				for doc_id in doc_ids
+					do (doc_id) ->
+						jobs.push (cb) ->
+							UpdatesManager._processUncompressedUpdatesForDocWithLock project_id, doc_id, temporary, cb
+				async.parallelLimit jobs, 5, callback
 
 	getDocUpdates: (project_id, doc_id, options = {}, callback = (error, updates) ->) ->
 		UpdatesManager.processUncompressedUpdatesWithLock project_id, doc_id, (error) ->
diff --git a/services/track-changes/app/coffee/WebApiManager.coffee b/services/track-changes/app/coffee/WebApiManager.coffee
index 50409ca43c..0067c87d03 100644
--- a/services/track-changes/app/coffee/WebApiManager.coffee
+++ b/services/track-changes/app/coffee/WebApiManager.coffee
@@ -3,7 +3,7 @@ logger = require "logger-sharelatex"
 Settings = require "settings-sharelatex"
 
 # Don't let HTTP calls hang for a long time
-MAX_HTTP_REQUEST_LENGTH = 15000 # 15 seconds
+MAX_HTTP_REQUEST_LENGTH = 30000 # 30 seconds
 
 # DEPRECATED! This method of getting user details via track-changes is deprecated
 # in the way we lay out our services.
diff --git a/services/track-changes/test/unit/coffee/UpdatesManager/UpdatesManagerTests.coffee b/services/track-changes/test/unit/coffee/UpdatesManager/UpdatesManagerTests.coffee
index 161a5deb55..4a7d463b37 100644
--- a/services/track-changes/test/unit/coffee/UpdatesManager/UpdatesManagerTests.coffee
+++ b/services/track-changes/test/unit/coffee/UpdatesManager/UpdatesManagerTests.coffee
@@ -182,17 +182,7 @@ describe "UpdatesManager", ->
 				@updates = ["mock-update"]
 				@RedisManager.getOldestDocUpdates = sinon.stub().callsArgWith(2, null, @updates)
 				@RedisManager.expandDocUpdates = sinon.stub().callsArgWith(1, null, @updates)
-				@UpdatesManager.processUncompressedUpdates @project_id, @doc_id, @callback
-
-			it "should check if the updates are temporary", ->
-				@UpdateTrimmer.shouldTrimUpdates
-					.calledWith(@project_id)
-					.should.equal true
-
-			it "should backport the project id", ->
-				@MongoManager.backportProjectId
-					.calledWith(@project_id, @doc_id)
-					.should.equal true
+				@UpdatesManager.processUncompressedUpdates @project_id, @doc_id, @temporary, @callback
 
 			it "should get the oldest updates", ->
 				@RedisManager.getOldestDocUpdates
@@ -225,7 +215,7 @@ describe "UpdatesManager", ->
 				@RedisManager.expandDocUpdates = (jsonUpdates, callback) =>
 					callback null, jsonUpdates
 				sinon.spy @RedisManager, "expandDocUpdates"
-				@UpdatesManager.processUncompressedUpdates @project_id, @doc_id, (args...) =>
+				@UpdatesManager.processUncompressedUpdates @project_id, @doc_id, @temporary, (args...) =>
 					@callback(args...)
 					done()
 
@@ -251,10 +241,22 @@ describe "UpdatesManager", ->
 
 	describe "processCompressedUpdatesWithLock", ->
 		beforeEach ->
-			@UpdatesManager.processUncompressedUpdates = sinon.stub().callsArg(2)
+			@UpdateTrimmer.shouldTrimUpdates = sinon.stub().callsArgWith(1, null, @temporary = "temp mock")
+			@MongoManager.backportProjectId = sinon.stub().callsArg(2)
+			@UpdatesManager._processUncompressedUpdates = sinon.stub().callsArg(3)
 			@LockManager.runWithLock = sinon.stub().callsArg(2)
 			@UpdatesManager.processUncompressedUpdatesWithLock @project_id, @doc_id, @callback
 
+		it "should check if the updates are temporary", ->
+			@UpdateTrimmer.shouldTrimUpdates
+				.calledWith(@project_id)
+				.should.equal true
+
+		it "should backport the project id", ->
+			@MongoManager.backportProjectId
+				.calledWith(@project_id, @doc_id)
+				.should.equal true
+
 		it "should run processUncompressedUpdates with the lock", ->
 			@LockManager.runWithLock
 				.calledWith(
@@ -313,7 +315,9 @@ describe "UpdatesManager", ->
 	describe "processUncompressedUpdatesForProject", ->
 		beforeEach (done) ->
 			@doc_ids = ["mock-id-1", "mock-id-2"]
-			@UpdatesManager.processUncompressedUpdatesWithLock = sinon.stub().callsArg(2)
+			@UpdateTrimmer.shouldTrimUpdates = sinon.stub().callsArgWith(1, null, @temporary = "temp mock")
+			@MongoManager.backportProjectId = sinon.stub().callsArg(2)
+			@UpdatesManager._processUncompressedUpdatesForDocWithLock = sinon.stub().callsArg(3)
 			@RedisManager.getDocIdsWithHistoryOps = sinon.stub().callsArgWith(1, null, @doc_ids)
 			@UpdatesManager.processUncompressedUpdatesForProject @project_id, () =>
 				@callback()
@@ -326,8 +330,8 @@ describe "UpdatesManager", ->
 
 		it "should process the doc ops for the each doc_id", ->
 			for doc_id in @doc_ids
-				@UpdatesManager.processUncompressedUpdatesWithLock
-					.calledWith(@project_id, doc_id)
+				@UpdatesManager._processUncompressedUpdatesForDocWithLock
+					.calledWith(@project_id, doc_id, @temporary)
 					.should.equal true
 
 		it "should call the callback", ->
@@ -798,4 +802,4 @@ describe "UpdatesManager", ->
 					user_ids: [@user_2.id]
 					start_ts: @now
 					end_ts:   @now + 10
-			}]
\ No newline at end of file
+			}]