something like beetlepsx (with retroarch frontend), or duckstation Well.

If the controller still experiences issues, try resetting the controller. Either screenshot the console window, or: Close DuckStation, and Send us a copy of duckstation. The buttons will be automatically mapped to the corresponding locations on a PS2 controller. As Duckstation does not currently support Konami Justifier as a controller many games have to be converted to Guncon to work.