Significant editor slowdowns when moving blueprinted actors while having a different complex blueprint open

A Blueprinted actor's construction script time can be affected by the complexity of an opened level Blueprint.

1. Create any blueprint and save it (RerunConstructionOnDrag is defaulted to true)
2. Create a new level
3. Open the Level Blueprint and create a very complex graph (putting a print string node, then copy/pasting it till you have a very large number, 2048 does the trick)
4. Save/Compile the level/blueprint
5. Drop an instance of your blueprint in the level, and drag it using a translation manipulator, notice very choppy performance
6. Close the level blueprint, and repeat step 5, notice that it is very smooth

See UDN for more information [Link Removed]