I know people on it on Linux. They said it was pretty fast. They haven't griped about it any. It's possible the user's ISP or the Proton client software is caus

I know people on it on Linux. They said it was pretty fast. They haven't griped about it any. It's possible the user's ISP or the Proton client software is causing it. It also might depend on which servers they use given more outages might happen in specific parts of the world vs others.