everything in doom is happening faster than it should be. has this happened to anyone else?
Why are you crossposting?, change fps target to 45fps or 30fps in the game options
still too fast
As I recall, Doom originally targeted 35 fps (since that was half the refresh rate of graphics mode 13h that it used - 320x200 @ 70 Hz refresh rate). I would surmise that’s the ‘correct’ fps target to use if possible. 
i mean i put it on 35 fps but it doesn’t seem to change anything. that’s on the in-game menu. should i try to change it elsewhere?
Set it in the ‘core options’ and the restart the content.
i’ll give that a shot when i get home.
i’m not seeing core options. i just have the version that google play has. is that bad?
found core options. says no option available.
No, it’s on the in-game settings. I guess you have vsync disabled (or vsync not working) then. You can try throttling to 1x under frame throttle settings.
vsync’s on. where do i find frame throttle settings?
The version in the Play store is super-old, and you’re probably better off grabbing a nightly from http://buildbot.libretro.com. Also, core options don’t show up until you have some content loaded. So, start the game, then go back into the menu and find the core options.
do i just throw the cores and an apk onto an sd card er what?
yeah, put it on your SD card, make sure you turn on the option to allow installation of random apps and then open the apk with something like ES File Explorer. It will install it for you. When you run it, there’s a core updater that you can use to grab the cores you want, so you don’t need to get them, just the main apk.
I’m not sure if it’s still an issue, but you probably want to uninstall your old version before installing the new one (that is, don’t just upgrade in place).
does ES file explorer require root?
It doesn’t require it, but it can use it if you have it. Sideloading apps doesn’t require root.
alright grabbed myself the latest nightly and installed it. grabbed the prboom core. doom now plays as it should. but i can’t make savestates or save the game as you would before savestates were a thing. i have my save state and save game directories to the file on my device that i have always used.