Pika network is getting worse. Its a common issue to many players that if they disconnect and then rejoin the server they face lag problems, like from 130ms to 500ms or so. I think this server is not good for regular players nowadays. Like i have elite and gold rank still I think its a waste for im not even able to play many times because of lag problems, and the lag problem solves after a day or so. So i think you should consider giving your time to another lag free servers atleast it would be better than this
For now, one thing you can do is use a VPN. You can do so by creating an appeal HERE and choosing the VPN Blockage option.
VPNs do solve the problem for me most times. However, if it doesn't work for you, you can also try out these IPs:
pika.host
proxy001.pikays.net
proxy002.pikasys.net
proxy003.pikasys.net
proxy004.pikasys.net
One more solution to this is using ExitLag, but I won't suggest this, since it is paid and it might not even solve the issue.
That's all you can do for now, if nothing works, there's no other solution and you have to wait till this gets solved.