Hi Daniel. Sorry to hear you’re experiencing this.
1,600 events (recurring or not) is not very many, and we have heard of sites with 10,000 or so events working.
Therefore, my best guess is that something definitely is causing issues but it’s likely not a common issue.
Can you consistently reproduce the issue (e.g. make it time out your web server at the same point of your workflow — or whenever you do a recurrence pattern of ___)?
Could you please make sure all your Modern Tribe plugins (and WordPress core) are at their latest versions?
Once you verify you’re on the latest versions, please test to see if the issue is still happening for you.
If it is, please follow our Testing for Conflicts Guide and see if that helps narrow down the cause of this.
If it doesn’t, would you mind enabling WP_DEBUG and sharing any messages you see while navigating your site’s home page, events page, single-event pages, and any other of your site’s pages relevant to this ticket?
After all that, if it’s still not ironed out for you, please share your System Information. That will give me a lot of extra information to help diagnose the problem.
Thanks.