The problem with large sites

Hello! Thanks for the great plugin.

There is a problem that manifests itself on fairly large sites with a large number of posts and taxonomies. The fact is that the directory becomes so huge that the 300 second limit is not enough to scan it.

It turns out that the task of clearing expired caches does not end and starts again, with the arrival of a new user. This leads to a drop in server performance and slowdown or even complete unavailability of sites. I thought it was some kind of clever ddos ​​attack, but it was your plugin.

You can reproduce this error by making hundreds of requests to a site with the task of clearing a very large amount of cache.

I would be glad to hear your opinion.