You can use the ACL Curve compression codec to compress animation curve data for things like Animation Modifiers and Morph Targets. The ACL Curve codec works especially well when compressing Morph Targets if you provide a Skeletal Mesh as a reference for the compression codec. With a reference mesh, the codec can calculate and store a vertex displacement precision value instead of a generic scalar track precision value to compress mesh deformation curve tracks. Here you can reference a list of the ACL Curve Compression Codec properties and a description of their function.