It is not like it is a crazy difficulty increase with 2.29% daily in the network of Monero. I think the FPGA-s may be just in but not at full power yet. I see this difficulty change in my home miner though with many 1060 cards which are not doing well, I was doing about 0.32 mBTC daily with 6 cards and now I am only doing just a bit more than 0.24 mBTC daily these last days. The difficulty increase is there but not as crazy as we think it is.