[UE4]question of import of alembic or FBX have different speed! mesh Alembic skeleton question

[garykalee0]

same character rig export the joint and mesh FBX and mesh Alembic (geo cache)
fbx play speed is a little faster than ABC cache (24FPS)
How could I solve it???

there is also have a question,
the static pose of mesh Alembic of skeleton is ugly.
could i change it the rest pose anyway?

[garykalee0]

push
pushpush
​​​​​​​
​​​​​​​