I am currently on a Jio connection and yes, since the last few days whenever I visit OT/DD it takes a long time to open. But this happens only for the first time and later on, all the page loads at a normal speed. Are you guys having the same behaviour at your end too?
I don't face this issue on Airtel.
Not sure if it's an issue from Jio's end. Are any more sites that you browse affected by this issue?