According to Newegg Advertisement the Deepcool AK400 Zero Dark Plus has a TDP rating of 220 Watts.
Your R5 7600 APU has a TDP rating of 65 Watts with a Maximum Operating Temperature of 95c.
So basically your Deepcool CPU Air cooler is doing its job of preventing your AMD Processor from overheating when temperature reaches or goes above 95c.
But I would think the temperatures should be a little bit lower than 85c for your CPU Cooler. I would make sure that it is correctly installed and you used good quality Thermal paste and the cooler is evenly and tightly and making good contact with the surface of the processor.
Also make sure that the CPU Cooler's air flow is not obstructed or sucking in hot air from your GPU exhaust fans.
Make sure you have good Air flow inside your PC. You can find this out by removing the PC Side panel. If the Processor's temps are slightly lower with it off indicates poor air circulation inside your PC case.
Also your Room temperature has a lot to do with your processor's temps. A hot room will cause your processor to run hotter than normal.
But as long as your processor's temps doesn't go above 95c you have nothing to worry about. The processor was engineered to run normally with temperatures up to 95c for long periods of time without damage.
It is just better to run you processor as cool as possible.
