Hi, I´m new at the pool. I´m running 11 GPUs at around 6500 MHash.

My problem is, that I have a lot of invalid shares. Mostly around 50%!!! Is it normal for DOGE? If yes, DOGE isn´t a good coin to mine, because the profitability is not 50, it´s 50% of 50 = 25.

At the moment I´ve:

Valid Round Shares = 38336
Invalid Round Shares = 12096
Your Efficiency = 76.02%

Normally when I mine LTC, I´ve max. 1% of invalid.

What can I do?

Edit: I´ve 11 worker at the pool. 1 for each GPU. Is it better to run all GPUs on only 1 worker?