Thank you for your analysis.
We’re not ending with optimisations, just trying to focus some features because a lot of the players have a fine performance atm. and we want to please them too.
On our PC with an Intel i7-3770 and a Geforce gtx660 we get more than 60fps on a new game and with a really intense map (about 150-200 vehicles) the fps drops to 20-30fps but is still playable. We do have to improve the CPU usage on those intense maps to get a better performance.
We did hear in the early days that Afterburner does influence the performance of Train Fever. Have you tried to run it without Afterburner?