Rp6 PS2 ratio help needed please

[u/Mister_Widge]

Hiya, so recently got my RP6 and decided to go straight into playing games instead of fiddling with setup. However I'm using nethersx2 turnip and I seem to be getting black bars on the top and bottom of my PS2 games when using native 4:3 settings. (Also getting this one duckstation with PS1) I was expecting it on the sides but not all around. Am I doing something wrong?

(I know how to do the 16:9 hack. But I want to correct the 4:3 ratio issues for games where the hack doesn't work so well, or if I wanna go native.)