New
#11
52C is a more than excellent temperature after 40 minutes of game play. You have no problems there at all. I wouldn't worry about the temps, or the thermal paste. I think your issue with the medium FPS is just the limitation of your card. There isn't much you can do about that, other than to buy something like a GTX 970, or a Radeon 390X, both similar in capabilities, though the Nvidia card will outperform the 390X by a small margin.