What router do you have? vendor name and model number / release number.

Airtel Xstream Fiber
ZTE
Product: GPON ONT
Model: ZXHN F670L

Little advice: cable ! not wifi. Im on cable, and I always join as 2nd into room. More advice: minimize all ur apps, it helps lag. More advice: with this, u could play e.g. 3v3 games with FP and maybe ok, explain it in room description

I really want to fix the issue, not play as FP 11
Chris please help!

Setup a port forwarding rule on UDP 1600 for your local ip address as explained the Youtube video above. Don't use the DMZ Host option though, it's a security issue and should not be used.

Tried it, didn't work

Please show me a screenshot of the forwarded port rule.

Please find attached.

Thank you.
Please change it to UDP and select the active WAN connection from the drop down. Then it should work.

Voobly could add a fast proxy server to india or the Middle east. That would resolve alot of lag issues

You wouldn't need a proxy server with a DSL/Cable connection where the port is properly forwarded.