Mining ZCL on suprnova hashrate vs accepted shares

[remm3cs]

Currently mining ZCL on suprnova pool with 2 rigs.

1. 7*1070 (mining rig ~450 Sol/s each GPU). 12hours of mining = ~500 accepted shares


2. 1*1060 (gaming pc ~300 Sol/s) 13 hours of mining = ~3500 accepted shares

So assume the more GPUs u use, the higher the difficulty. But with the mining rig after every 10 accepted shares I get: GPUX DevFee Accepted share. While with my gaming pc i never get this message.

Is this normal? And what is more important, more accepted shares or higher hashrate?

Hope someone can clarify above.