It is a lot more playable now, before I couldn't really do anything once the tutorial had ended. There was still a little bit of lag especially after a minute or two, but noticeably better well done :) Keep working on it!
Viewing post in Highway Havoc jam comments
Wonderful! Yeah it's definitely not perfect, but now we're only updating 2 small chunks of the mesh per frame instead the entire mesh, and I can properly cull sections that are off-screen. Likely it's still slowing down when most or all of the meshes are on-screen, so that'll be some proper mesh optimization on top of the chunking.