🤑 Indie game store🙌 Free games😂 Fun games😨 Horror games
👷 Game development🎨 Assets📚 Comics
🎉 Sales🎁 Bundles

I believe it depends on the browser you're using, how much memory is allowed to that browser, and how well your computer can handle running the game. I use the game on Chrome pretty well and I just tested it on Firefox. If those browsers don't work you can always download the standalone version which does not have the limitations of a browser.