when level lag the click delay changes

[JerichoGesolgani]

as you seen in the title this happend to me when i play a random feature levels with Click Between Frames. It's work fine but when the level is lagging, the input lag change even i play on 60fps for example in mystery gauntle level Empty Space when i reach to ufo section the level lags like crazy and even that the input lag change. How is that even possible, i thought this is benefitical for all FPS?

and yes i shit laptop lol