Collision boxes slow to move when using higher poly meshes

Collision boxes become sluggish to move when using higher poly meshes.

High poly boxes attached (60 K and 120K tris)

Users Video for reference: [Link Removed]

1. Open UE4
2. Import attached asset (SM_Box_120K or SM_Box_60K) or higher poly static mesh
3. Open the Static mesh and move select the collision box that is auto generated on import
4. Move the collision box in any direction
5. Switch collision complexity to "Use Simple Collision as Complex"
6. Move the collision box in any direction

Results: The collision box is sluggish to move depending on the triangle count of the mesh in the viewport. Lower poly meshes do not appear to have a sluggishness. Switching the collision complexity greatly increases the movement speed.

Expected: There should be no sluggishness when placing collision meshes based on the poly count of the mesh in the scene.