If you mean make things worse, you can always count on that 
If you mean actually improve stuff so it works, I suggest you stick to non-compromised versions of the engine or even stuff that just isn’t epic managed (nvidia brances for one).
You see, when all you care about is Fortnite, you cannot possibly get good results on anything (arguably else, but apparently not even that!).
And when you achieve the proven track record of compromising core engine features by constantly doing so for over 6 years… well, yea. No one should believe you when you say that something you broke will get fixed.