Mobile bloom kills performance

So, I'm making a very basic 2d game, that doesn't have a whole lot going on. I wanted to add some basic bloom to my game, but the stuff unity provides absolutely kills my game performance. I tried all 3 types of bloom in the assets package and no matter how I set them, the framerate never goes above 30fps. I understand that the platform I'm developing on is mobile but, I have seen games that pull bloom off well, are far more complicated than my simple pixel game.

Some of you are probably thinking that the device I was testing on might now be good enough, but I have tested on fairly decent devices. Google Nexus 7 2013 and LG G4 2015

How should I go about adding bloom to my mobile game, without killing the games performance.