To addendum the adding another 8gb ram stick comment, only do this if you are currently running a single 8gb stick.
Furthermore, ensure that whatever stick you add in is rated to run at the same exact speed AND timings as your current stick to ensure as much compatibility as possible.
But even then, compatibility is not guaranteed.
For increased amount of ram and increased ram performance I highly suggest getting a 16gb kit of 2x8gb sticks so that the two sticks are guaranteed to work together.
As mentioned, 85c Max under normal gaming load and not during a stress test is pretty dang hot. However, since you did not mention the CPU being a K variant I have to assume you are using the stock cooler. Improving your cooling situation would most likely help in regards to the CPU temps. This can easily be achieved very cheap with something like a hyper 212 Evo.
Also though, case airflow is very important as well.
You should have as least two fans, one at the front for intake and one at the back for exhaust, but more fans is better.
The 1060 being at 50% load when playing overwatch doesn't sound right.
If you crank the graphics up does the load increase?
If not, can you see what load your CPU is at? If the CPU is not at full capacity then I would definitely look into doing the DDU thing for drivers.
Otherwise, something is wrong that is causing your CPU to get fully loaded down when it shouldn't be.
It's possible your no name power supply is not able to adequately supply power to your graphics card as well.