I am using airtel sim and I feel that it is slow as compare to jio network I think airtel speed should be fast more than jio. In future airtel will be india’s fastest mobile network. In some places airtel network is very slow like in Durg Bemetara, Kawardha(Chhattisgarh).but it gives best service compare to the other mobile network. Once I called costmer care of airtel . They solved my problem in 2 minuts