Yes, autolykos2 a bit similar with ethash. If ethash limiter already started, then if affects autolykos2 to half. Autolykos2 needs enough core clock to get optimum hashrate, I usually set power limit to 110 with core/mem to 220/2200, 240/2400, or 260/2600. It is different from ethash which can set core as lowest as possible, while set mem to maximum as possible.
Edit:
NBMiner much faster than Nanominer. I get 123,3 MH/s with it at core 220 mem 2200 pl 110.