The other important component is your Internet connection upload speed. In an average 4-hour session of Divinity Original Sin, you can quite easily rack up 20MB or more of save files, especially if you are quite far into the game. On the other hand, games like Fallout, Divinity Original Sin, Skyrim, The Witcher Series and a ton of other RPGs all have very large save files and lots of regular autosave points which queues a lot of data for cloud sync. Instead, this data is saved on the game in questions server in real-time. This is because these particular games don’t have much or any save data to send to the cloud.

If you have been playing a game like PUBG, Rainbow Six, Call of Duty, Apex Legends or other first-person shooters, you will generally find that Steam shuts down fast, with minimal data syncing to the cloud, if any at all.

The reason Steam cloud sync can be extremely slow from time to time depends on the games you were playing during your session. Why does Steam cloud sync take forever sometimes?

Why my steam download so slow