pc slower than expected

So my PC isn't performing as well as I would expect in games. I have a R7 2700X cpu, RTX 2060 gpu, 16GB 3200mhz ram, 500 watt bronze psu, and Asrock B450 Steel Legend. With these specs however in Destiny 2 and MW, i'm only getting about 70-80 Fps at low settings. This doesn't make sense to me as...