if you use psx4m-gles and press ctrl+backspace and close process by pushing X it also doesn't close and will eat cpu and energy

[fremantle]: pcsxrearmed 0.4.0.1 - update to fix bug with using nosound option
[fremantle]: psx4m-gui 0.4-6.4 (not recommend) - new design, no bios selection\no rom directory selection, but more intuitive to configure each core ;-)