HIKVISION DS-2CD202WF-I(W) RTSP STREAM LAGS

I have a HIKVISION DS-2CD202WF-I(W) camera. The stream through the HIKVISION webpage - accessed using the camera IP address - in Internet Explorer and the ONVIF Device Manager(ODM) in Windows 10 works fine without any lags.

But, when I try to stream using VLC, ffplay(ffmpeg), OpenCV C++ VideoCapture class in Ubuntu 16.04 & 18.04, there is a lag of approximately 2 seconds.
The URLs I have tried are...

HIKVISION DS-2CD202WF-I(W) RTSP STREAM LAGS