hi, i’ve been using this version of vnc server now posted by patrikolausson: Possible to install a VNC server? - #12 by patrikolausson
You might wanna give that a try and see ?
Read my comments on the thread on how to compile it…you have to remove -Wall and -mtune=native from the makeit file.
Its been working fine for the past months, and with low CPU consumption.
His github page is: GitHub - patrikolausson/dispmanx_vnc: VNC Server for Raspberry PI using dispmanx