how to skip the cutscenes so fast? holding space to skip them is so much slower then in some runs

demo viewer version keeps taking away the second nade during weapon course, the nade strat is basically impossible to do have to open the game through game files instead of steam while playing the demo viewer cause it gives an error if you try to do so (07/13/2022) anti piracy measure? but i doubt so. No issues on newest patch. Any help is appreciated