Yes with segwit you can raise the size up to 4mb but the effective cost limit so the blocks will remain balanced is about 1.6-2 mb https://bitcoincore.org/en/2016/01/26/segwit-benefits/. Besides that, I am not sure if the last days is only a spam attack in the network and not increased real transactions too but 160s/byte for fast confirmation is unacceptable. Thus, the only people in bitcoin world who have sure and big profit are only the miners. Aren't they?