That case is VERY compact and unfortunately appears to be your main problem. Ideally you'd want all of your high end components to be in a larger sized case to allow for better ventilation. Your gpu upgrade if anything should have been to a reference gtx 1070 as it has a blower design to better echaust the gpu heat out the back of the computer. That evga sc 1070 has an open air cooler doesn't exhaust the heat, but disperses heat directly into the case which might be causing higher ambient temperatures in your build, contributing to your high cpu temperatures.
You could try these steps:
1. Install this low profile cpu cooler
http://noctua.at/en/nh-l9i (NOTE: There's no way I can guarantee this will fit your case as it's proprietary.)
2. Return the open air evga 1070 and purchase a Nvidia Geforce gtx 1070 reference style cooler equivalent so gpu heat is properly exhausted from the case.
There's a slim chance these two steps MIGHT fix your thermal issue, but i'm by no means guaranteeing it.
Good luck to you.