I updated the firmware on the 280V as MehStrongBadMeh mentioned earlier and that solves the framerate issue. The main bugs I notice now are that the music doesn't sound right in many games and sometimes some graphics are missing.
What firmware version did you update to? I just updated my 280V to OpenDingux Beta 2021-01-12 but now I'm just getting black screen for tac08.
Ok, just read MehStrongBadMeh response where he mentions the firmware :)
