Closed Lag with free tiles and NPCs/Enemies

most of my game is lag free except recently (past week) with me breaking and collecting tiles from the worlds i visit and enemies along with any NPC i encounter in the Outpost or planets move in a choppy, slow crawl. The the only thing i think would cause this is the resolution, but I've tried raising and lowering it to find no difference. And no nothing else lags in the game besides the 3 things listed in the title.

If someone knows how to fix this it would me much appreciated!

 

Also forgot to mention this, but breaking the tiles takes longer i assume because of this "selective lag."