I recommend using a true Free and Open Source Playstation emulator, such as from the multi emulator Mednafen. RetroArch has it as a core as well, rebranded as Beetle PSX, which I use since years. It is getting updates and games work as good as in Duckstation. Only it is a bit more heavy on processor power and its upscaling requires more graphics power as well. I use it in software mode anyway and the compatibility and emulation accuracy should be mostly equal.

Just in case someone wants to use an alternative.