[Xperia Z3 Original Android Development] Itroublve:
MAYBE Temporary Workaround?

A workaround to problem 2 could be;

<?xml version="1.0" encoding="UTF-8"?>
<audio_effects_conf version="2.0" xmlns="http://schemas.android.com/audio/audio_effects_conf/v2_0">
<libraries>
<library name="bundle" path="libbundlewrapper.so"/>
<library name="reverb" path="libreverbwrapper.so"/>
<library name="qcbassboost" path="libqcbassboost.so"/>
<library name="qcvirt" path="libqcvirt.so"/>
<library name="qcreverb" path="libqcreverb.so"/>
<library name="visualizer_sw" path="libvisualizer.so"/>
<library name="visualizer_hw" path="libqcomvisualizer.so"/>
<library name="downmix" path="libdownmix.so"/>
<library name="loudness_enhancer" path="libldnhncr.so"/>
<library name="dynamics_processing" path="libdynproc.so"/>
<library name="proxy" path="libeffectproxy.so"/>
<library name="offload_bundle" path="libqcompostprocbundle.so"/>
<library name="audio_pre_processing" path="libqcomvoiceprocessing.so"/>
</libraries>
<effects>
<effect name="bassboost" library="qcbassboost" uuid="23aca180-44bd-11e2-bcfd-0800200c9a66"/>
<effect name="virtualizer" library="qcvirt" uuid="e6c98a16-22a3-11e2-b87b-f23c91aec05e"/>
<effect name="equalizer" library="bundle" uuid="ce772f20-847d-11df-bb17-0002a5d5c51b"/>
<effect name="volume" library="bundle" uuid="119341a0-8469-11df-81f9-0002a5d5c51b"/>
<effect name="reverb_env_aux" library="qcreverb" uuid="a8c1e5f3-293d-43cd-95ec-d5e26c02e217"/>
<effect name="reverb_env_ins" library="qcreverb" uuid="791fff8b-8129-4655-83a4-59bc61034c3a"/>
<effect name="reverb_pre_aux" library="qcreverb" uuid="53ef1db5-c0c0-445b-b060-e34d20ebb70a"/>
<effect name="reverb_pre_ins" library="qcreverb" uuid="b08a0e38-22a5-11e2-b87b-f23c91aec05e"/>
<effectProxy name="visualizer" library="proxy" uuid="1d0a1a53-7d5d-48f2-8e71-27fbd10d842c">
<libsw library="visualizer_sw" uuid="d069d9e0-8329-11df-9168-0002a5d5c51b"/>
<libhw library="visualizer_hw" uuid="7a8044a0-1a71-11e3-a184-0002a5d5c51b"/>
</effectProxy>
<effect name="downmix" library="downmix" uuid="93f04452-e4fe-41cc-91f9-e475b6d1d69f"/>
<effect name="hw_acc" library="offload_bundle" uuid="7d1580bd-297f-4683-9239-e475b6d1d69f"/>
<effect name="loudness_enhancer" library="loudness_enhancer" uuid="fa415329-2034-4bea-b5dc-5b381c8d1e2c"/>
<effect name="dynamics_processing" library="dynamics_processing" uuid="e0e6539b-1781-7261-676f-6d7573696340"/>
<!-- Disable Acoustic Echo Cancellation & NS effects because they are not working correctly
<effect name="aec" library="audio_pre_processing" uuid="0f8d0d2a-59e5-45fe-b6e4-248c8a799109"/>
<effect name="ns" library="audio_pre_processing" uuid="1d97bb0b-9e2f-4403-9ae3-58c2554306f8"/>
-->
</effects>
<!--
<preprocess>
<stream type="voice_communication">
<apply effect="aec"/>
<apply effect="ns"/>
</stream>
</preprocess>
-->
</audio_effects_conf>

Or completely removing the commented out part might even help... The file can be found in /system/vendor/etc/audio_effects.xml

SOURCE

And who knows the MAGISK module might help with your wifi dropping issue? (Module can be found by clicking source in the post...)

Note: I've not tested anything on this rom (CR8.0 20200225) so perform on your own risk