It is unlikely that anything can be done, because the provider leases transmission channels and nodes from backbone providers, and switching some segment to another branch may be impossible or economically unprofitable.
It's hard to say in your case. Maybe the ISP, in order to get away with it, switched the vag to another branch, offered a router to increase the ping, and then brought it back. That's business.
If there are other providers in your city, maybe they have different routing, but very big doubt about it.
If all the Internet goes on this route, it is hardly possible to do anything at all, if not, then the inclusion of some access node (VPN) to bypass this route can improve the situation. It is necessary to carefully analyze the network and routing
It's hard to say in your case. Maybe the ISP, in order to get away with it, switched the vag to another branch, offered a router to increase the ping, and then brought it back. That's business.
If there are other providers in your city, maybe they have different routing, but very big doubt about it.
If all the Internet goes on this route, it is hardly possible to do anything at all, if not, then the inclusion of some access node (VPN) to bypass this route can improve the situation. It is necessary to carefully analyze the network and routing