Make the timeline smooth!
After Effects lags when displaying many keyframes in the timeline.
When I open a comp with a lot of keyframes (and I mean A LOT of keyframes), the timeline gets really laggy. When I zoom in so that the timeline shows only a few keyframes, it's not lagging at all.
This problem is also present with Refresh Disabled, so this has nothing to do with the visual output; it's After Effects having trouble with merely displaying many keyframes.
This is really slowing down my workflow; constantly have to zoom in or collapse other layers to prevent having to animate in sloth mode.