This game, simply put, is like a snail. The CPU usage is terrible, and the game is ridiculous when it comes to lag.
For those that don't know, this is a very simple tip for reducing the lag in Chrome and Firefox, by using extensions. These can very easily be disabled at any time without even having to restart your browser, so watching videos and such in a higher resolution won't be a problem.
[★] Chrome
1. Download the following extension: (you need an account to see links).
2. Go to tools > extensions (you'll find these by clicking the icon that looks like a spanner).
3. Click "options" on your newly installed extension, and select which resolution you'd like.
Done! I find that the lowest resolution is the best, but the quality is hideous. You'll notice a huge difference with this, though.
[★] Firefox
1. Download the following extension: (you need an account to see links).
2. Go to tools > add-ons > select FlashResizer.
3. Click "options" on your newly installed add-on, and choose your quality and such from the menu.
Done! I find that the lowest resolution is the best, but the quality is hideous. You'll notice a huge difference with this, though.