FPS drops using RA and Duckstation

Hello all, need help please.

I have problems with a dropping frame rate FPS in some games (PAL) when running Duckstation through Retroarch. (Worms and CC)

If I run them in Duckstation without using Retroarch there is no problem with frame drops.

Cores, drivers etc, are up to date. I have tried to change some settings in RA but no success.

I’m using an ASUS mini pc with AMD Ryzen 7 processor (Using Vulcan drivers), connected to a 55” Plasma tv.

Do you have any ideas of what I can try to do?