Steins;Gate 0 [BLJM61303]

I'd take a blind guess and say you're probably using a somewhat weak processor. In s;g 0 RPCS3 keeps outputting a lot of the same strings in a loop so that could possibly lag you a bit.
Make sure you're not running a lot of other programs that can use up CPU power.
Ultimately, as said above, audio is not the primary focus of the emulator in this stage. I get around 45fps ingame and the audio lags a bit but nothing much imo. It's bearable.

If you want, you can disable logging to the debug console. Might help with the FPS by a bit. The things will still be continue to be logged in the log.

heres a thought since I didn't need to modify anything to get passed those scenes should I perhaps submit my logs as basis for comparison for those who have to use a modified version of the game?

Possibly. Also maybe it's caused by you using different firmware version modules?

I hadn't considered that.