OpenEmu vs Retroarch, which emulator is better

By better, I mean which emulator experiences less lag issues. Whenever I play, sometimes OpenEmu freezes, I want to make a switch to Retroarch but I do not want to waste my time if I have to keep facing freezes during gameplay.

This is what I mean by the lag issues with OpenEmu:

https://github.com/OpenEmu/OpenEmu/issues/4657

https://github.com/OpenEmu/OpenEmu/issues/4664