HIK Vision Sub Stream frame rate and performance with iVMS
Reference:
https://www.use-ip.co.uk/forum/threads/sub-stream-frame-rate-and-performance-with-ivms.3176/
If the resources of iVMS-4200 are too much for the computer, switch to sub-stream.
In iVMS-4200 lite, click Maintenance at the top. Under System Configuration>Live View and Playback make sure Auto-change Stream Type is NOT selected.
Then back in the Main View tab right click the camera and you will be able to select the stream type. Keep us posted.