As I promised in my last reply, I’m here again to let you know that version v1.1.0 of the game is out now!
Although I don’t think the lag issue is completely solved, I’ve also uploaded a Windows executable that seems to work perfectly fine (I hope ^^””).
Also, while researching ways to solve the issue, I found out that some users say the game might be laggy depending on the browser, or that it might work better with “Hardware Acceleration” enabled in your browser settings.
Anyway, thank you so much for the feedback and for playing my game!! :D