Your CPu shouldn ' t be a bottleneck and you can Overclock it . Tweak your settings and maybe clock your card a little . <| sep |> Pool difficulty if to adapt the shares it ' s gonna give your miner a s 1 won ' t gett the same diff as an s 9 because it won ' t be acle to crack the same data in a given time . This is usually set up automatically and you don ' t need to worry . Network difficulty is the one rising , every 2 weeks the btc network adapts the dicciutly so there is only 144 blocksday . If there are more than 144 blockday the day of the diff recalculation , it will rise , or lower if blocks 144 . This is a problem for you because if the diff rises 10 % it ' s 10 % less income for you as a pool miner , that ' s what you need to be concerned about . Unless you have really cheap electricity , do your calculations here with a 510 % diff increase and see where it gets you . Keep in mind that compared to s 7 , . 0 jghs hardware will most likely last longer and you ' lkl have more time to ROI . Have fun mate !