Game lagging problem

these are my pc specifications. is the game lagging because of my pc or have i missed something else? i have tried both nightly builds and canary builds

Citra is still in it’s early stages of development. The emulator isn’t optimized well yet.
Most games don’t run at full speed even on the best computers.

Your CPU also isn’t the best when it comes to single-core performance. It scores below Citra’s recommended score of 1800.