Ok so I feel like I am pretty good at all

the competitions, like there isn't any I'm REALLY bad in, but I really need advice on words. I practiced on like all the other competitions, watched JTee's videos and actually improved over time. Words is like the only competition I can't break 50k in. I see people consistently scoring 60-70k. I am like not getting better. I am at a plateau what is the trick? I know most of the words now, a good 80-90% and go super fast but like how am I suppose to double my average of 40k??? What is the tricks/tips... I wanna improve so bad. Mind you I play it on my iPad too...