I need more information to try to figure out why this is happening with you. Moreover, considering that customers have not had such problems yet, I need as much information as possible. Your configurations are from the plugin. If you say that it consumes a lot of resources, then you have conducted a lot of tests with this plugin. It would be nice to look at the results of these tests and how they were done. How and in what quantity were the events launched on the server? What are the parameters of the computer on which these tests were performed? A list of plugins to identify possible conflicts. If you have done a lot of tests, maybe you have something to add to this list of questions, maybe you will tell something new and interesting, but what I did not specify in the questions above