Many games (presumably those with good controller support) my 8bitdo Ultimate works fine with, such as Silksong. But other games, such as Outer Wilds, which I'd expect to work and claim to have controller support, lead to a drift effect and a delay on input (which is not replicated in any hardware testing or other menus.)

I thought the issue was with Steam Input, but whether or not Steam Input is enabled I experience the same issue.

After literal hours of troubleshooting, including rewriting the controller's inputs through another program (AntiMicroX), I have no idea what to try next--any ideas? Thanks!