It's painfully slow for me in Chrome. If I had to guess, I'd bet you're rendering everything as tiles across the entire screen and could improve it by prerendering them to larger tiles. But that still doesn't seem like such a big deal, so I'd go so far as to guess that you're rendering the tiles for the entire level even if they're off the screen...
phree_radical9 karma
It's painfully slow for me in Chrome. If I had to guess, I'd bet you're rendering everything as tiles across the entire screen and could improve it by prerendering them to larger tiles. But that still doesn't seem like such a big deal, so I'd go so far as to guess that you're rendering the tiles for the entire level even if they're off the screen...
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