Retroarch Dolphin and Flycast core questions on xbox serie X

Hello everyone!
Hope you're good in this difficult times.

I created this because I just started to use retroarch with my Xbox Serie X, though I did meet some emulator problems.

I tried to use Dolphin emulators, but while the performance seemed great, I had some graphics issued which would be great if there is a way to manage them. I use the basic core of Dolphin provided in retroarch ( don't know if there are better one? ), and on Skies of Arcadia, often the game screen colours turn red actually. Same in Paper Mario there are missing characters, I had same problem on pc dolphin in the past for this game. In Baten Kaitos, the game run so slow suddenly in some menu or during success battle screen after a fight when you need to pick up cards.

Also, on Flycast I tried to run Skies of Arcadia from different area, but the emulator don't want to launch game it seems. Is there some work around or better core to get so that it works well?

Thank you for your help guys and take care.

 

Thank you for your reply! Would be great to have informations!

Actuallt I tried dolphin with D3D11, 12 and results seemed same. With GL I had black screen with only sound of the game.

For Drramcast I tried with D3D and GL but no results.

 

Yeah Dominateur, that's what I read on another topic here!
But do you have any idea why I didn't succeed to launch yet a Dreamcast game or why in dolphin for example Skies of Arcadi turns red suddenly or that I can't see some characters are not visible in paper Mario? Any help would be so much apreciated!