Games freezing a few minutes after startup

Fixed on latest build

I am having the same problem but in my case the message only pop ups when i am closing the Rpcs3. I have played Ninja gaiden sigma  before in 60 fps with no issue but now its performance have also degraded playing on 40 to 45 fps which is very unplayable.
My specs are 
Ryzen 3 2200g (stock)
Ram 16 GB 2666mhz kingston dual channel
A320M-K motherboard

and this is my first time reporting so sorry If I miss anything. Thank you.