For anyone on emulation bothered by 60fps audio de-sync: Using software Lossless Scaling frame gen does wonders.
Turning off the dynamic fps mod and using frame gen instead will solve the audio-desync issue and you'll also get 60fps cutscenes! This solution will work fine for 30fps games like XC2 where additional input latency won't affect the gameplay experience. There's also some minor motion artifacts however the benefits outweigh the cost by a lot.
Steps:
-Monitor refresh set to 60hz
-Acquire Lossless Scaling and set Frame Gen to 3.0, Mode to X2, and Capture API to DXGI
-Make sure vsync is off in the emulator
-If not using g-sync, go to nvidia control panel->manage 3D settings->XC2 emulator->vsync option = adaptive half refresh
Once in-game full-screen, toggle frame gen with Ctrl+Alt+S
Hope this helps someone!