VNC server and call recorder?

for personal reasons, I need the two functions.
I'm currently using VMLite VNC server. It works but one problem is after Nexus 5X went to sleep for a while, the VNC server does not respond to a client connection request. I would have to wake up the phone before I can connect to VNC server. That makes remote access pointless.

second problem is I have not found a call recorder that actually works on Nexus 5X. I know there is an old post but I haven't found a solution.
some apps that I have tried either fail to record the other party or give distorted voice that's unusable.
:(
This makes me want to use an iphone again. at least Veency is very responsive always, and there is a very slick call recorder in Cydia.

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