Proton, Copilot, and literally this single issue are what pushed people to Linux. If I were in charge there would be a team devoted to fixing this a decade ago.

WSL singlehandedly stemmed much of tide of developers moving away from Windows, but WSL native filesystem performance gave devs that magical experience when they boot into Linux the first time and see that the filesystem doesn't have to be ass. There's always been hacks around this, but for many devs the easiest hack was to ditch Windows.

They should have moved heaven to fix this on day one, there's really no engineering excuse. Linux is open source.