Make sure you downloaded the correct version for your os, it does have to load a larger navmesh which could be causing performance issues. It is also on forward+ so this could be down to hardware performance issue. If you can provide any details that would be great for trying to fix your issue!
I have updated the web version which should now be playable (at least on my system). If you continue to run into issues, if you can be specific about the problem I may be able to resolve it. The downloadable versions will be updated to the later version soon, but still should be playable!
I tried it again, the first time it crashed when i clicked on play. The 2nd time it worked clicking on play, but then after 5 seconds it lagged so much it was unplayable. Maybe my laptop just cant take it
Well done i was able to play it this time, I actually got to 81 score. It lagged around 50 for about 5 seconds but i was able to finish the run without much lag