Massive Performance Issue after 5.1 migration relating to Timelines and Sequence Player

I’ve migrated a VR project from 5.0 to 5.1. However, any level that includes a level sequence with a moving static mesh or a static mesh moving using a Timeline and Spline causes the framerate to drop by about 100 frames - getting worse depending on how many actors there are. This didn’t happen in Unreal Engine 5.0. Has something changed? What could be the issue?

Deleting the actors from the scene (which shouldn’t really affect performance much) drastically improves the framerate.

Any help would be greatly appreciated as it has completely bricked my project :slight_smile:

P.s. Im not using Event Tick

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