Why does the file uploading to Creative Cloud take much longer than usual?

hello everyone,

I was wondering, is there some kind of limitation of speed of uploading the files to the Creative Cloud? it can`t have anything to do with my internet connection, because in other services like google drive or wetransfer, uploading of the same files goes much, much faster than in CC. I chose "Max" at the upload limit in the preferences of the CC app, but still it takes about 3 times longer than usual in other services. any idee why?