I would have to agree aswell, as this "pre-launch" i expected to be able to do at least some decent stuff - at least gathering so i can sort out all my things.
If mass fishing and foraging is not causing any lag - why not slowly turn on other things such as gathering/logging first and see how it copes with lag so u can continue monitoring it before actual release.
If you wait till the 15th and turn all features on, heck you might have unforseen lag issues or bugs that you could of fixed within the "pre-launch" if you turn on some things at a time.
Just a thought
PS. If people are saying Terraforming is a major lag cause, then continue to leave that off, maybe turn it on for couple hours a day and monitor and alter it then. Turn it off after.