ROMs Replace camera on Custom ROM

[ranjb]

I am running a custom AOSP ROM based on Google Play. My phone is rooted.

One question I have is there anyway to have a camera with more features such as slow and fast video recording? Can I install a slightly improved camera with an apk install and replace the one installed with this ROM?

The ROM i am using is resurrection-lollipop-v5-5-8

Thanks