I didn't have time to include a Controls section in the menus for this hotfix, but my friend confirmed me that the pressing a Monster bug that was happening to him (very, very similar to yours), is fixed now. If you try the new version one of these days, I hope it's fixed now and it's not unpleasant to play! Apparently for this particular fix, it was indeed related to high Hz monitors (so the game goes at higher FPS -> less time to click correctly. Eventually I'll also include a way to cap FPS, so monitors with a high Hz don't try to perform the game with the highest possible FPS, causing unnecessary overwork.