(India) Network issue and gpay/phonepe lag

This question is specifically for the Indian users. Are you guys having issue with network? I am getting msg that you have missed calls from these no.snd also when I am trying to call it doesn't connect. I have to do flight mode on/off and then it works nice. Anyone facing such issues (jio and vodafone).

Also QR scanning is taking alot of time. My previous phone whenever I opened the scanner it scanned in just milliseconds. Here I have to hold the phone for 3-4 sec to get it scanned.