Thank you for your feedback! The virus shouldn't be in the game. Usually it's a false detection from virustotal for old games in PureBasic (by the way, it's one of the reasons why I stopped creating in PB, because there were more false detections and no one knew how to solve it). Yes, you're right, it could be explained better. It's one of my first works from more than 11 years ago, so I apologize. Otherwise, you can check the speed of the game here:
It looks exactly the same as mine. It's obviously always so fast. And it seems normal to get stuck often and lose time as a result. So my assumption that the controls aren't working properly on my system is also wrong. The game should be a lot easier. I haven't even made it past level 1 yet. It would be better if the gems were surrounded by only 4 balls.
Best regard