A small contribution to the talk, it also happens even if you are lvl 99. Once I had a really long dormant state just to stockpile a huge amount of DNA and in spite of having a really balanced and deep line up, my PvEs were unbearable towards the end.
Some PvEs depend on your top three like most of them but the Fight for Funds does even go beyond, some others like the Battle for Survival have their max limit as ferocity even if you’ve gone far beyond that. It is you to see for yourself and experience by time.
All in all, the game demands progression no matter what if it is fast or slow, but steady and balanced all along.
I hope this helps, but about English I must say, a great deal of us here are not natives and speaking not on a supreme level is not a reason to be sorry ok? It’s the global language, that’s all. As long as we understand you, the rest is just a small detail.