One issue weve ran into is the slowness when a user filters results using the Cost. Filtering using any of the other items takes 2-4 seconds, and the Cost can take up to 12-15 seconds.
This definitely sounds like a strange issue to be having. I checked your site and noticed that the price filters were no longer activated (definitely understandable due to performance issues).
Out of curiosity, about how many future events do you have on your site currently? Would you also mind sending us a database dump of your current events in a private reply? We can do some further testing to see how the filter is performing at the scale of your current site.
Our site does have quite a few events, and its growing. Right now theres 2,500 future events. Wow, didnt realize we had that many.
I can do an export, and send it, but whats the best way besides a PHPMyAdmin export of the entire site? Do you just want one of the tables? Would it help for me to activate it on our staging site, and give you access to that?
Thanks for following up! An export of the entire site (you can exclude users and usermeta if you would like) would be fine. You can then send the download link as a private reply here.