OK good to know. Thanks! I’m going to just crop all the comps, though I’ll look into collapse transformations.
I also had another potential memory hog and had some subsequent questions about rendering:
I have a bunch of arrows that I wanted to run repeatedly, so I used the echo effect. I set it up correctly, but it was really killing playback performance so I took them out until I fixed the above problems. Since I have so little RAM for rendering, I was thinking of instead of using echo, just copy-pasting the layers inside the arrow precomps. So it would be the same effect, without using “echo”. But if I’m still running into render time issues, does pre-rendering precomps lower the render time for the main composition?