I've got a similar grow going... in fact, I've got two plants... HUGE leaves... one is 4 weeks old and about the same height as yours, one is 6 weeks old and just starting to stretch... both autos... I've found all I can really do is try to tuck those large leaves under as LST isn't going to work very well for now. The 6-week old is FINALLY starting to put some height on her and I'm able to get in and do some LST and very careful, selective defoliation ... but the way I look at it, those huge leaves are pumping lots of good stuff into the plants and when they really DO start their stretch (and they will...), the plants are going to be massive and give huge buds...
I think your plant looks fabulous and would encourage you to just let her be... tuck the large leaves under potential bud sites as best you can and be happy she's so big and so healthy!
Good luck!