Created Unassigned: State saves, lag after loading and resuming emulation (or pressing Esc and resuming). Can't use memory cards either. [11552]

Hello all, I hope anyone can help me out with this one.
Every time I resume a previous save state in Load State, games resume really buggy, lagging and slow. Glitched audio too.
The games start fine when running for first time, but since I press Esc, and resume the problem starts.

I cannot use memory cards either, don't know why. When trying to load the Game File in Strider 2's Options, it says that the game file has been perfectly loaded and saved, but my previous completed stages are not there!

Thanks in advance if anyone suggests something