Silent Hill Downpour [BLUS30565]

also didnt encounter any lighting glitches

This is impossible because the lighting is still not fixed in any version of the emulator. No dynamic shadows, there are lots overbrights in every bright lisht sources, incorrect lighting of some textures. You probably don't know how the game should look on real console

4 spu threads.

This game better runs with setting threads to 1, and PPU threads to 3, otherwise you'll often get micro-freezes with max CPU load.

I also recommend to disable FXAA smoothing and DynamicPS3ResolutionChange in coalesced_int.bin file (it's inside of SHGame/CookedPS3/ folder) to get clear 720p rendering instead of crappy 576p smoothed to 720.