I have noticed that this course doesn't have good quality of videos as I find difficult to see some text and blur content in max 720p(HD). please do something to improve quality of this content.

https://i.imgur.com/Jf0287t.png The limiting factor is 720p resolution. Pictures are ok but the text is simply a bit blurry, especially on big screens. Since these courses are mainly presented with text on screen - upgrading to at least 1080p is a logical move. Edit: since upgrading would probably require you to reshoot the videos, upscaling sounds like a more reasonable request.

Hi Prakhar, We stream videos with one of the best available services online. Do you have a sufficiently fast internet connection, please? Can you share a screenshot? Best, Ned