AthenasOwl322 When you say you're seeing memory leaks, how are you diagnosing them, and how is what you're seeing different during events? Are you saying that the game starts having issues once you've finished the events for the week, and then it's fine again once the next week's events are available; or is it something else? And is the game fine or not when there is no event happening at all?
One easy step you can try is disabling Online Social Features, under Options > Game Options > Other. This cuts off access to the Gallery as well as events, but that's the point—it blocks the game from talking to EA servers in a few different ways. I believe there's also an option to not share usage data in the same location, and it's worth disabling that too. This is just a test; I'm not saying you can't use the Gallery in general.
If this doesn't help, as a further test, try playing with your computer offline. You can sign into the EA App and put it in offline mode, then disable wifi and/or disconnect the ethernet cable before pressing Play.