Airtel — 4g network at nellore (dt), andhra pradesh

Here i am sharing about 4g network at nellore (Dt), andhra pradesh... I am using airtel prepaid sim since last 10 to 15 yrs.. I love this network very much... When i changed my sim 2g to 4g then the problem was started... Sorry to say that 2g speed is better than 4g speed in nellore..
A very small type of file like under 10 - 20 mb downloading it can take 10-15 min.. My friends suggest me to port to another network.. But i can't do it.. Plz.. I request to you solve the issue as early as possible.. This is not my own problem. Number of my frnds suffer with this problem.. So hopefully u can understand and rectify the problem..