Not even close to true about performance, I have something far better that you can learn to compile and use beyond any maintainer if you wish. However, I'm compiling it with daily updates so I'll share it with you.
PM me for download details, note that because the latest version has a new encryption it WILL require you to format data. You can restore your data from backup but not from TWRP backup so I highly recommend you do a file transfer to an sdcard or to a computer via MPT and cable. Do NOT blame me for any data loss after having read this because I'm not nice about these things.
If that is of any interest to you PM me and I'll share my build with you, you can spread it all you like but link the source (https://github.com/Jennova-technologies) if you do. I think you'll find your issues resolved with my build because I did rewrite the sound idg for mic input.
Could you also share the download details to me? Thanks in advance!