FPS locked at first run

Every time I run the game for the first time after installing, the FPS is locked at 44 on the CPU side according to the in game performance metrics. GPU usage stays low when this happens. If I close the game and open it again, the issue disappears and performance returns to normal.It looks like some CPU resources used during initial shader compilation are not being released after the process finishes, which leaves the CPU permanently limited until the game is restarted.