Game optimization, Mod issue, or Graphic card?

[Jestersage]

So recently I noticed that loading some low part count craft (120) in the VAB induce frame rate drop occasionally. Is it due to game optimization, or should I run furmark to see what is wrong with my graphic card?

Specific action: It was when toggling a Service Bay that is contained within a payload fairing i start to have frame rate drop. Does not have issue during flight

Of the two other games I played, I have no issue with Apex, while Hyper Scape keep crashing once I landed.

Spec:

• win 8.1
• 3930K
• 1070 (non ti)
• 64GB

What I have done so far:

• Applied Windows update
• Installed newest GFX driver.
• Tested it without mods (only have Squad and Squad expansion folder)

Mods:

• KER
• AVP and dependency, inclduing scatterer
• KerbalX Craft manager

EDIT: This now become a request for second check. I realized it only happen if I open a payload bay, with context menu open... and I recall I had AeroGUI enabled. 1.10 somehow have permanent AeroGUI, but trying to run AeroGUI (which I guess meaning Physics) in VAB/SPH seems like a bad idea, especially parts that affect physics.

Someone please confirm it's just AeroGUI in Context Menu of VAB that cause stuttering.

Edited July 28, 2020 by Jestersage