Greetings, I was watching 1.34 because the following versions lowered the hash rate in my Gpus
xintensity 60 Rx580 from 33-34 to 30-31
xintensity -1 Rx6800 from 65-66 to 62-63
flexpool pool
You can try to increase the intensity. The next version will have 3 kernels with autotuning to find the fastest for your card.