How can I better optimize my events page?

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How can I better optimize my events page? The more I add, the more my pre-view page starts to lag. It isn’t terrible now, but I worry that it’ll become a problem if I leave it.

(Sorry if this is the wrong place to post this; still getting used to the site.)

You definitely want to start using object groups
And then your movement logic could be

hello!

put all your unwalkable sprites inside a object group. check the object group only once, and do the seperate only once.

do not use custom collision mask, those are laggy.