Big laggy road problem

CPU Intel(R) Core™ i5-6200U CPU @ 2.30GHz

Ram 4,0 GB

GPU Intel(R) HD Graphics 520

If you use unions, one way to reduce lag is to change the Render Fidelty of the part to Automatic. This should help dramatically. I would do this for all unions. It certainly shouldn’t have any negative effects on the game.