I you have used the "market fix" it's already too late
I hope you have a nandroid backup or can flash another rom/wipe your rom
I think it's related to the completely incompatible chainfire fix
in general: since the app's development stopped long ago you should not use it anymore
and as it was programmed only tegra in generation one existed so it is pretty unlikely that new tegra games will work on it
and I'm pretty sure that new games are
no tegra only games anymore so the plugins won't help
I would suggest you to uninstall everything/even better: flash your last nandroid backup without it
chainfire is likely to cause problems nowadays because it got incompatible with android 4 and higher
chainfire didn't want to update it because android 4 changed to much about graphic drivers and stuff
and the only reason it is still in the store is probably for older devices or chainfire himself wants more money (but I really don't think so)
things like the night mode still work and some people may are using it still, I don't know
but for making your device run games smoother, it's no ideal solution anymore
msaa is only for games who aren't using it by default even though your devcie supports it
and like with nvidia or ati drivers on your pc you can force apps to "use" it
normally there should be an option to disable it
but I'm not sure, really it was a year ago when I used it the last time
all in all: if your games aren't running smoothly -> just buy a new device with better hardware
maybe it's also your rom which is filled with bloatware
then you could try a fast custom rom with a custom kernel
there are lots of them out there and you are on xda, so...
good luck with your phone

(I really hope for you that you can fix the market issue with a backup or flash/wipe)