Page to add player to team easy and quickly

I think big issue in this case is huuuuuuuge data load during creating new list of player so it takes a lot of time esepecially when you have a lot of players. I have 2k players and my memory limit is just around 150 mb It’s not normal. I think there is to many not neccesary data loading during creation of player list. I’m using caching plugin, and page compression but still mamory use is very very high. Normally I have used ~40 – 60 mb