Nope, it's a desktop. Without mods, perfectly fine, constant 100 fps (unless part count >200). As soon as I installed any function heavy mods (FAR, SCANsat, etc), my RAM usage boosted to 100%. Although I'm mostly fine with it. Except probably BDarmory because it has PhysicsRangeExtender dependency, which blows my rig right to 10 FPS.
Like I said, I didn't think it has anything to do with the game, probably because mods in general is eating processes. Which means, I suspect it's my hardware.