use revolut on a pc?,
Not natively. You can run it on an Android emulator.
BlueStack or Nox App Player seems to be the more popular ones.
but it makes ure pc slow.
Every application will make it slow
Well, I am not quite sure what the point of the question is. No, there is no web based interface, no there is no native application. So in short, there is no straight way to use it on a desktop. However you can go through an Android emulator. Thats not the perfect solution but it works.
More information can be found here: