It would be nice to have options of having redream, but have you tried the Tico flycast core that added Vulkan? Aside from WinCE games, all games are fullspeed with no OC needed for majority of games. Having Vulkan makes a huge difference, for example standalone flycast and RA flycast struggles and can’t reach fullspeed on MVC2. But Tico flycast it’s smooth 60fps with no OC needed for MVC2. That’s just one example.
Like I said every game aside from some WinCE games are fullspeed, but from my experience even ReDream doesn’t handle WinCE game well. In fact I think one thing flycast does better than ReDream is WinCE games.
It’s worth it to try the Tico flycast core, people don’t seem to realize it’s performance I easy ahead compared to Flycast Standalone and RA core.