Hi.
First of all, apologies to those patient OSX users who have been reporting problems and not getting anywhere near the responsiveness that Windows users get.
Please use this sticky thread to report plugins that Reaper OSX does not support properly, and a description of how to make the plugin fail if it's not something obvious like "loading the plugin crashes Reaper."
Plugins that offer demo versions or are responsive to giving development NFRs will get priority.