It's almost always one form or another of caching (assuming it isn't a bug). One of the earliest examples I did of this was in the 80s where I pre-caculated the results of trig functions and stored them in an array. I could then perform trig calculations needed for my game with the cost of an array lookup.
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I have 3 performance tips:
It's almost always one form or another of caching (assuming it isn't a bug). One of the earliest examples I did of this was in the 80s where I pre-caculated the results of trig functions and stored them in an array. I could then perform trig calculations needed for my game with the cost of an array lookup.