as far as droop.. I'd chalk that up to just entering bloom - you likely use stronger lights over fewer hours. it may be the same energy or reasonable more, but it's still different for the plant at the moment.. give it a few days.
tip burn and some twisting of new growth below (possibly related, if not the new light schedule), could be a few things. need to know what you have put into substrate or res so far etc.. then make an educated guess even armed with that info. make sure pH is right etc... get it perfect for bud development.
maybe more claw as i look at it.. but my plants take a second when i move them to bloom box.