Severe performance issue recently when TC selected

This wasn’t an issue until relatively recently. For the past couple weeks, I’ve had severe fr drops when I have production buildings, particularly the TC, selected. It makes playing incredibly frustrating as I’m basically watching a slideshow whenever the TC is selected. I already lowered the graphics even though I’d never had an issue with them before and that did nothing. Is anyone else experiencing this? I can’t pinpoint exactly when it started as I played on and off a lot. It could’ve been after the last update or just the past few weeks. I can’t keep playing like this…