Minor Span Menu Issue

I started to notice this a few weeks ago when I started playing Gmod again for the first time in months. Whenever I try to walk with the spawn menu open, I can feel my FPS shooting down to from 60-80 to 12-20. I’m not sure if this is common or not, it may even be from a derma skin I added. I was just wondering if anyone else is experiencing this, and if there is a way to fix it. It can be rather annoying when you try to spawn a row of items or NPC’s to arrange.

Edit: I just realized this is not in the Help and Support section… Sorry about that. I also misspelled “Spawn”… Wow.

Derma always seems to lower my fps. It may be the spawn icons.