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.
If you put newer lock remote computer in teamviewer does problem(drop of hashrates) continues?