The time it takes to complete each day's activities will vary from person to person. It also varies depending on which resource you use (GMAT Prep Now videos or MGMAT books).
Also, some days take longer to complete.
If you're having difficulties keeping up, don't worry. You can take longer than a day to complete the activities if you run out of time. Plus, later on in the Guide, much of your time is spent working on weaknesses (i.e., not learning new content).

I hope that helps.

Cheers,
Brent