MacOS Mouse Acceleration Problem In Client/Game

So, I know this is a really old problem that was addressed back in 2013, or something like that...but it's 2019 and this issue still hasn't been resolved yet. I already turned mouse acceleration off by writing "defaults write .GlobalPreferences com.apple.mouse.scaling -1" in the terminal but even though there is no mouse acceleration in the general UI, when I enter the client/game the mouse acceleration comes back and is impossible to turn off...at least that's what I think so far. Is there anyone who knows how to get rid of this so that I can kite more accurately? It's really messing with my gameplay and I don't want to switch back to Windows if I don't have to.