this project has a lot of steps and complexities. i will directly support  two display types with complete optimizations. these are the st77xx series (128x128) and the ili9341 series (320x240), for those with different displays use the wrapper that translates my commands into instructions that use setwindow() and pushcolor() are somewhat standard and universal commands on adafruit displays, since i will only spi optimize drivers for ili9341, and st77xx, other display types will only be able to do 3-7 fps, but parallel mode should work quicker as these do not use spi. again the wrapper instructions are used if this is set in my sketch file

//#define workAnyAdafruitDisplay true

https://github.com/jamesdanielv/thermalcam/tree/updates-(possibly-unstable)

look for a zip file that contains ccompatible_adrafruitdisplays for universal

it will do 3fps at 64x64 on my st77xx, if workAnyAdafruitDisplay false i get ~10fps

you can try it out without changing any settings from this file here if you have a st77xx 

https://github.com/jamesdanielv/thermalcam/blob/updates-(possibly-unstable)/thermal_cam64x64.zip

it actually does about 20fps but i have interlaced enabled. at 10fps the screen scroll is visible if interlace is off.