My only real issue is with the pickoff attempt limitations.  For a runner to know that after 2 pickoff attempts, another one is very unlikely, is unfair.  I know it says they can attempt it and if successful the out is recorded.  However, if it is unsuccessful, they get the next base.  Is limiting the number of curveballs a pitcher can throw during an at bat or the number of foul tips allowed for a single AB next?
The time part I am okay with.  Stop the micromanaging from the dugout.  Stop the incessant glove adjusting.  Get up there and get the pitch thrown.
Bigger bases are fine.
I am also okay with eliminating the shift.  Teams will probably make the infield dirt go further into the outfield.  I am okay with 2 on each side of second base.  I am not okay that they have to have "cleats in dirt" part.  If the second baseman wants to get in the grass, that should be fine.  So I don't think there is a defined dimension of the infield dirt, so expect that to expand.