That worked, amazing, thank you for the quick help!

Higan does more than vba-m. The latter only does gb/gbc/gba while higan also handles Wonderswan, (s)nes (famicom and other systems. Higan is also more accurate than snes9x. The main difference is that s9x uses hacks to achieve compatibility while higan does not rely on game-specific hacks.
The higher accuracy means higher system requirements. A modern, fast cpu is recommended. Snes9x would probably be better suited for lightweight cpus. The emulator is still actively developed and updated.

Thanks to ikey and datadrake the problem is already fixed - the problem was with the microcode of the specific cpu, after updating the microcode through a bios update solus is now stable! Thanks again for helping me figuring this out, this can now get closed.