Thanks for the reply.Hello, and thanks for posting feedback!
The "Hold Time" exists because of a limitation with older versions of OBS Studio. The T-Bar used to only work programmatically if it was "released" - as if the mouse had let go of it physically. This has since changed it seems, and the plugin has not been updated to accommodate that. A fix is coming soon.
I'm waiting for the plugin change. If you need a test user, I'll be happy to help.
Giuseppe