I have a similar camera; different re-brand, but CMS2 reports it the same as yours. What did you end up doing with yours? Did you resolve the issue?
I have an issue where if I view the stream with anything except CMS2, the live stream is 30+ seconds behind! I updated my firmware to 2.4.5274 using the options in CMS2 to attempt to correct, but it didn't help. Your approach may be the answer if you tried it and it resolved your issues.