I have a pretty extensive animation all made up of shape layers with hundreds of keyframes. It later came a decision from the client to speed it up slightly. I tried time remapping/stretching, but both resulted in flickering, which is extremely obvious since it's very graphic. I also tried going into the different compositions and selecting all the keyframes and holding down alt and dragging the last keyframe. This does not work because there are several precomps with masks that don't follow along. I have made sure that continuous rasterization is checked on all comps before performing any of these attempts.
Is there anything I can do to speed this up slightly without causing it to flicker? I feel like this should be easier when all of the layers are vector.