Im getting around 14000 sol/s for gtx 1070 and 8500 sol/s for gtx 970. the 4 x 1070 rig lolminer was crashing every 10 20 mins so I changed the batch from 2 to 4 ts been almost 1 hour so far so good.
Edit:
strange thing just happened. the gtx 1070s hashrate dropped of 14000 sol/s to 7000 sol/s
Did you just closed your TeamViewer? If yes, it is because of that. I have the same issue. I need to change the batch value to 8 to have a hashrate better but still below than with TV opened.
Try putting the batch value back to 2, and then opening a browser to a youtube video. The video doesn't have to be playing, just make sure it's in the background and not minimized.