Need some help to finish my Hackintosh installation

I finished installing macOS 10.15.7 Catalina on my laptop, which is Dell Vostro 3500. Everything is good, I managed to get Wifi and Bluetooth works.
My EFI: https://drive.google.com/file/d/1TrdQFO3nL4wWfow_x09c2mhvzPay0A9u/view?usp=sharing
But there are 2 things left I need.

1. When I touch my touchpad, my keyboard stops working. This only happens for built-in keyboard, USB keyboard works fine, restarts fix it. How can I solve this?
2. Built-in speaker not working. I have read the list of supported codecs, but seems like my Cirrus CS8409 is not supported. Currently I use my Bluetooth speaker. Is there a way to use my built-in speaker?