Raise a British proxy with Antidetect. You can have a one-time job, if anyone is interested in this project - we will switch to a permanent basis.
You need to configure the work of a dedicated server, since in recent days the server began to work at times slower than before. My assumption is that the problem may be in an unoptimized base.
On a server running Debian with ISP Manager 5.0 installed, caching does not work.
How did I know that? Google Page Speed constantly argues that there is no caching.
Previously, we were on VPS, and now we decided to move to a fully dedicated server, but when we rented a server, then it turns out that you need to use a server.