1.5.4 animation sluggish

Since the 1.5.4 update change to using animation groups, the animation has become very sluggish and choppy. I've got both slide and fade enabled, previous versions still ran both very smoothly but the frame rate has dropped considerably. Obviously not a huge issue as performance within the app is still the same as it ever was but something worth mentioning.

MacBook Pro Retina 13", Late 2013
2,6 GHz i5
8 GB memory
Intel Iris 1536 MB

Any other info you want, just let me know.

Start by reproducing the sluggish, choppy slide-and-fade animation on the reported MacBook configuration and compare it with behavior before version 1.5.4. Done means both animations return to their previous smooth frame rate without changing in-app performance.

Written by the indexing model from the issue text.