I use XP XP11.41 or XP22.51r1 on a iBookPro 16 Zoll with Thunderbolt 3.  I have an eGPU RadeonVII.  I get framerates up to 70.  The framerates drop to 1-2 prior to the landing followed by a crsh of the X-Plane.  I use Catalina.  Perhaps an insider  (Mac and XP for Mac) can help looking for the reason.   The eGPU shows an activation higher than 60 %.

All the best

Horst grunz

Hi Horst,

can you share with us where you got XP22.51r1? Or how you got hold of a time machine? 🤣

You have XP 22 and are 30 years from the future? Wow XP didn't die after all. But still has terrible bugs 😂

Dont bite, dont bite, teh worm is dangling on the hook, dont bite.....