To replicate in the intro screen (which is where I first noticed it), take a ship with Omsk armor and shields (I used the Krethul frigate from TSB, but Nasser should also work). For the opposition, fill the screen with Hornets. There shouldn’t be any real slowdown. Change those Hornets out for Earthzones, however, and the lag should be noticeable.
I’m not exactly sure what’s causing it, but something somewhere is wrong. Basicially, a ship with a
<GetMaxHP> shield will cause lag if there are a lot of other ships with shields (which don’t need the event). My first thought was that the one shield’s event is somehow checking for every shield instead of just itself…?