Notes on performance

The PLC and the HMI are not affected by the number of open connections. If there are too many open connections, image refresh on the PC may be slowed.Likewise, an overload on the target due to VNC transfer operations may slow (and even stop) all low-priority operations (such as background tasks and buffer memory management).For slower processors (clock @600 MHz) it is advisable not to open more than one client connection at a time.If refresh is too slow, you can modify a client configuration parameter to reduce the volume of data exchanged. Specifically, you can improve reply times by lowering image resolution (Options -> Encoding Method).