Okay. So, you're in pre flower stage. So max ppfd isn't needed.
Nor should u lower your light that close as its still a growth stage.
Once pre flower is over you can then even out ur canopy by HST'in / supercropping.
Also, to slow nodes that are growing more than others.
Take a few of their bigge fan leafs off. This will slow tat nodes growth. (But becareful as ur in a stage where any major Defoliations shouldn't be done) but 2 sets of fan leafs off nodes won't cause too much stress it'll slow that nodes upward growth.
Really its not a major thing to worry about.
DLI, good feeds methods, air flow, temp and no light stress. These things will suit u more in getting a successful grow. After pre flower that's when light intensity comes much more into play.
Good