After a few hours of game and returning to the main menu, I realized there is an obvious memory leak. 2.6GB of ram as opposed to 0.4GB after a fresh restart. Also, notice the CPU usage, clearly another issue, reducing the game remove the FPS limit (V-SYNC?) resulting in unlimited framerate and therefore intense hardware usage.
Platform: Windows 10.
NB: This game is awesome, don't forget to optimize it
1) Play for some time until you notice the memory leak. 2) Reduce game while in main menu.