SMOS best miner EWBF?

trialing the SMOS using ewbf and was curious as to others results.
on a 1070 8gb card the best i can pull is about 360 sol’s, but running under windows i get about 420 sol’s with the same OC settings. Does anyone know if this is just a limitation of the whole OS where it is connecting to the SM server and thus increasing the latency, or have we got a bit of sol’s stealing going on in the background. OR would a different miner work better on SMOS such as DSTM