Massive lag when starting emulators

TheSweCookie

Commendable
Mar 22, 2016
10
0
1,510
so when i got a emulator for nintendo 64 called project64 i recieved huge lag spikes when starting the emulator and and starting the games and when i say while starting i mean while starting the emulator or roms or goin into settings and changing something not when the game is running because when my game finally starts it runs perfectly. The lag the i get makes my whole computer lag. my mouse lags on the screen and all sound gets messed up.

anyone have any idea of what it could be?
 

TheSweCookie

Commendable
Mar 22, 2016
10
0
1,510
specs:

OS: Windows 10 Home (Sv)
Motherboard: GA-Z97X-Gaming 3 Mini itx
Graphics card: Gigabyte Geforce GTX 970 Windforce 3X
Processor: Intel core i5 4690K 3.5GHz 6MB
RAM: Corsair Vengance 16GB (2x8GB) DDR3