Why Windows 10 File History copying is so slow? If I copy-paste files to my backup hdd drive I get almost 200 Mb/s but when File Hystory is doing it it tops at 30 Mb/s. What is the difference? Does the File History process slows down the transfer on purpose to avoid to use too much drive ressources? That could make sense if your C drive speed is comparable to your backup but since I have a NVMe copying files on a HDD I would not even feel it if the transfer was running at 100% of the HDD drive capability.