Control iMac from iPhone?

Question

iOS

Recommend an adequate application for remote control of iMac from iPhone.
The VNC remote desktop, of course, completely duplicates the system, but it's terribly slow.
Should I try applications with a server side, will it affect performance?
Maybe there are some kind of multifunctional control panels and so on.
It is surprising that such a function is not provided by Apple out of the box.
(With the exception of the iTunes remote, which is not built into the application and can only scroll through tracks)

Answer 1

https://www.nomachine.com/en/download