avocadoes12 The CPU readings are from after you've played the game for a little while? I ask because they're so low that it seems like the processor hasn't had any significant workload while hwinfo has been open. 35º C is barely above room temperature, after all, at least compared to the ~90º maximum before most processors start to throttle. (They're safe at temps in the low 90s; I'm just saying they start to lower their workloads around that point.)
The fact that one fan isn't working is actually kind of alarming and might be the root of the problem here. I can't tell you how much of a problem that is without knowing the layout of the motherboard and how the cooling apparatus is structured overall, but it's definitely something to get fixed if you can. Look for a computer store that offers free or cheap consultations—someone might be able to open the chassis and replace the fan, or unstick it, or whatever is necessary, for a reasonable price.