This site is being deprecated.
Please see the official X‑Plane Support page for help.
Check that your frame rate is around 20 fps or above. That can make a difference with menu responsiveness especially. We do have a change coming in the next beta that may help UI loading times.
If these changes are new to this beta, or only started happening recently, please file a bug here and be as specific as possible. "Cockpit manipulators" is too vague for example--I tried a few and they worked just fine for me. But maybe I didn't try the same ones you did. Include a log.txt and as much information as possible to recreate the issue.
This site is no longer being actively maintained.