Typo? A 15% upgrade should be 2.3 MH/s. Otherwise please contact the support team and we have a look what is going on.

On a general note: We purchase hardware at discounted prices from manufacturers. As much as we would like to magically upgrade everyone's hardware, this is unfortunately not possible. So basically it is the same situation as if you purchase the hardware in a shop and mine at home. In contrast to a shop we are trying at least to mitigate the effect between price changes.

Regarding question about X11: yes, we plan to offer something soon.

Cheers, Marco (mk)