GranTurismo4 Steam Deck FPS Issue

[Bikesrfordirt]

Hello!

I notice a huge drop in fps whenever there is for example: 

-a pace car with flashing lights in front of me
-headlight or taillights of some cars in front of me
-whenever my own cars headlights are on screen

Would anyone happen to know what is going on?

I’m new to emulators, and went through EmuDeck to download PCSx2 by the way

[jesalvein]

Emudeck isn't supported. Here.
Start by resetting all pscx2 settings to default or download the official appimage
Keep in mind steamdecks aren't that powerful and will probably struggle from time to time with games like GT4

[daxus]

Hello!

I notice a huge drop in fps whenever there is for example: 

-a pace car with flashing lights in front of me
-headlight or taillights of some cars in front of me
-whenever my own cars headlights are on screen

Would anyone happen to know what is going on?

I’m new to emulators, and went through EmuDeck to download PCSx2 by the way

Hi, I got some improvements with a patch that does something with the lights. It's not mine, but somewhere here on this forum I believe.

You put the pnatch-file in your cheats folder. (Home/.config/pcsx2/cheats)
I have USA v1.0, if your game is a different version, it won't work. 

But as mentioned above, resetting every main setting is a good start.

Setting the game setting audio synchronization to Async makes the drops less bothersome.

[zavo]

Hello!

I notice a huge drop in fps whenever there is for example: 

-a pace car with flashing lights in front of me
-headlight or taillights of some cars in front of me
-whenever my own cars headlights are on screen

Would anyone happen to know what is going on?

I’m new to emulators, and went through EmuDeck to download PCSx2 by the way

Try disable SMT with Power Tools, that should give a big bump in performance in the scenarios you described