Just chill out and focus on your fav mons lol
The game is way more balanced than you think, the only bad mon is MetalEtemon and yet you can simple research it to get a better mon +1 or more.
Even if a mon isn't that great on PvP (Alphamon for example, too slow), it is great for PvE farm. And we don't depends on a PvP only item like the LB we have here on DH to get a +4 on most mons.
Yes it is time consuming, but if you're not a whale, simple play at your pace.