First of all, a 100GH/s Contract is really small if you want to see a Sizeable Daily Income. You have to invest in at least​ 1 TH/s to see some Income Flowing and after that if you carefully Reinvest than your Profit will grow.

As for Bitcoin being slow and late, it's because of two factors - 1st is the fact that BTC rose to 20k and 2nd of all there is a lot of Attacks going on over the Bitcoin Network which in turn is making it slow.