On tinypool.com i'm only getting with my Baikal X10 half the mining speed they should have. Instead of 20 GH for both total i get only about 11.4-12. Tried with and without "extranonce" activated in the miner webinterface. Didn't notice a difference. Difficulty is set to d=8 as suggest by the pool.

Do you have an idea how I can fix this?

Thanks!