"...the bigger the levels got the jankier the camrea movements got..."
That's because the game and generation doesn't have a good optimization, so it causes frame drops.
It's not as noticeable in the first levels because there's not much to render and update, but as the level gets bigger the number of cells increases as well which is most likely the main cause of the lower frame rate.
But since most people didn't play the game for long enough to get to higher levels, i spent more time on other things than optimizing the generation system.