Reduce the amount of sprite sheets used by Pixi.js -- 2

I need to reduce the amount of spritesheets I have built for [login to view URL] application from 10 to 1. All my current sprite sheets have the same mask size therefore are perfectly lining up at horizontal and vertical center on stage. This takes up a lot of cache and is slowing down end user performance. I need to rebuild my sprite sheets in TexturePacker by utilizing trim feature and reducing transparent pixel space while still being able to perfectly line up on stage. Overall objective: to reduce spritesheet RAM usage by optimizing spritesheet layout.