[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] Kingo64:
In case anybody is wondering, here are the build.prop modifications that this patch adds:

af.fast_track_multiplier=1
af.resampler.quality=5
assertdisplay.value=128
audio.adm.buffering.ms=5
audio.deep_buffer.media=true
audio.dolby.ds2.enabled=false
audio.dolby.ds2.hardbypass=false
audio.ds1.metainfo.key=273
audio.heap.size.multiplier=1
audio.hifi_rec.concert_gain=-100
audio.hifi_rec.concert_lcf=0
audio.hifi_rec.concert_lmt=0
audio.hifi_rec.normal_gain=30
audio.hifi_rec.normal_lcf=75
audio.hifi_rec.normal_lmt=0
audio.hifi_rec.offset_gain=40
audio.legacy.postproc=true
audio.noisy.broadcast.delay=600
audio.offload.16bit.enable=1
audio.offload.24bit.enable=1
audio.offload.32bit.enable=1
audio.offload.buffer.size.kb=1024
audio.offload.disable=0
audio.offload.gapless.enabled=true
audio.offload.min.duration.secs=30
audio.offload.multiaac.enable=true
audio.offload.multiple.enabled=true
audio.offload.passthrough=true
audio.offload.pcm.16bit.enable=true
audio.offload.pcm.24bit.enable=true
audio.offload.pcm.32bit.enable=true
audio.offload.pcm.enable=true
audio.offload.pstimeout.secs=5
audio.offload.track.enable=true
audio.offload.video=true
audio.parser.ip.buffer.size=262144
audio.safx.pbe.enabled=true
audio_hal.period_size=192
av.offload.enable=true
av.streaming.offload.enable=true
bt.max.hfpclient.connections=1
camera.aux.packagelist=org.codeaurora.snapcam,com.qualcomm.saltproject,com.qualcomm.saltproject2
camera.disable_zsl_mode=0
camera2.portability.force_api=1
com.qc.hardware=1
com.sonymobile.dseehx_enabled=true
config.foss.path=/system/etc/FOSSConfig.xml
config.foss.xml=1
dalvik.vm.appimageformat=lz4
dalvik.vm.build-mode=smart
dalvik.vm.dex2oat-swap=true
dalvik.vm.dex2oat-thread_count=4
dalvik.vm.dexopt-flags=v=y,o=y,m=y
dalvik.vm.image-dex2oat-filter=smart
dalvik.vm.isa.arm.features=default
dalvik.vm.usejit=true
dalvik.vm.usejitprofiles=true
dalvik.vm.verify-bytecode=true
db.log.slow_query_threshold=100
debug.bt.discoverable_time=0
debug.composition.type=gpu
debug.drm.mode.auto=1
debug.drm.mode.force=3840x2160
debug.egl.hw=1
debug.egl.swapinterval=-1
debug.enable.gamed=1
debug.enabletr=true
debug.gralloc.enable_fb_ubwc=1
debug.gralloc.enable_fb_ubwc=1
debug.hwc.force_gpu=1
debug.mdpcomp.maxlayer=4
debug.qc.hardware=1
debug.qctwa.preservebuf=1
debug.qctwa.statusbar=1
debug.qualcomm.sns.daemon=i
debug.qualcomm.sns.hal=i
debug.qualcomm.sns.libsensor1=e
debug.sf.enable_hwc_vds=1
debug.sf.hw=1
debug.sf.hwc.canUseABC=1
debug.sf.latch_unsignaled=1
debug.sf.no_hw_vsync=0
debug.sf.nobootanimation=0
debug.sf.swaprect=1
dev.defaultwallpaper=/system/snap.jpg
dev.pm.dyn_samplingrate=1
dev.pm.gpu_samplingrate=1
dmid=-1286820014
doze.pulse.brightness=15
doze.pulse.delay.in=500
doze.pulse.duration.in=1000
doze.pulse.duration.out=1000
doze.pulse.duration.visible=3500
doze.pulse.notifications=1
doze.pulse.proxcheck=1
doze.pulse.sigmotion=1
doze.shake.acc.threshold=100
doze.use.accelerometer=1
doze.vibrate.sigmotion=0
drm.service.enabled=true
flac.sw.decoder.16bit.support=true
flac.sw.decoder.24bit.support=true
flac.sw.decoder.32bit.support=true
hdr_capable=1
htc.audio.hdaudio.videoplayback=1
htc.build.stage=2
htc.scanrecorder=1
hw.cabl.level=Auto
hwui.render_dirty_regions=true
lockscreen.rot_override=true
log.tag.launcher_force_rotate=VERBOSE
lpa.encode=true
lpa.releaselock=true
lpa.use-stagefright=true
media.aac_51_output_enabled=true
media.mediadrmservice.enable=true
media.stagefright.audio.sink=280
media.stagefright.enable-aac=true
media.stagefright.enable-http=true
media.stagefright.enable-player=true
media.stagefright.enable-qcp=true
media.stagefright.enable-scan=true
mm.enable.qcom_parser=760765
mm.enable.qcom_parser=760765
mm.enable.smoothstreaming=true
mm.enable.smoothstreaming=true
mmp.enable.3g2=true
mpq.audio.decode=true
net.dns1=8.8.8.8
net.dns2=8.8.4.4
net.tethering.noprovisioning=true
persist.adb.notify=1
persist.af.fast_track_multiplier=1
persist.af.resampler.quality=5
persist.android.strictmode=0
persist.audio.aov=ON
persist.audio.dirac.speaker=true
persist.audio.dual_audio=ON
persist.audio.dualmic.config=true
persist.audio.fluence.audiorec=true
persist.audio.fluence.speaker=true
persist.audio.fluence.voicecall=true
persist.audio.fluence.voicecomm=true
persist.audio.fluence.voicerec=true
persist.audio.handset.mic=digital
persist.audio.heap.size.multiplier=5
persist.audio.hifi.int_codec=true
persist.audio.hifi=true
persist.audio.hifi_adv_support=1
persist.audio.hifivoice=true
persist.audio.hp=true
persist.audio.lowlatency.rec=true
persist.audio.ns.enabled=ON
persist.audio.ras.enabled=true
persist.audio.ssr.3mic=false
persist.audio.uhqa=1
persist.audio.voice.clarity=ON
persist.audio.vr.enable=true
persist.autorun.mode=1
persist.bootanim.preload=1
persist.bt.a2dp.aac_disable=false
persist.bt.a2dp_offload_cap=sbc-aptx-aptxhd-aac
persist.bt.enableAptXHD=true
persist.camera.HAL3.enabled=1
persist.camera.gyro.android=4
persist.camera.tnr.preview=1
persist.camera.tnr.video=1
persist.camera.tof.direct=1
persist.cne.feature=1
persist.data.df.agg.dl_pkt=10
persist.data.df.agg.dl_size=4096
persist.data.df.dev_name=rmnet_usb0
persist.data.df.dl_mode=5
persist.data.df.iwlan_mux=9
persist.data.df.mux_count=8
persist.data.df.ul_mode=5
persist.data.iwlan.enable=true
persist.data.mode=concurrent
persist.data.netmgrd.qos.enable=true
persist.data.wda.enable=true
persist.debug.coresight.config=none
persist.debug.wfd.enable=1
persist.delta_time.enable=true
persist.denoise.process.plates=0
persist.dpm.feature=1
persist.fuse_sdcard=true
persist.gps.qc_nlp_in_use=1
persist.hal.binderization=true
persist.hvdcp.allow_opti=1
persist.hwc.enable_vds=1
persist.igps.sensor=on
persist.ims.disableADBLogs=1
persist.ims.disableDebugLogs=1
persist.ims.disableIMSLogs=1
persist.ims.disableQXDMLogs=1
persist.ims.disableUserAgent=1
persist.mm.enable.prefetch=true
persist.net.doxlat=true
persist.power.useautobrightadj=true
persist.radio.RATE_ADAPT_ENABLE=1
persist.radio.ROTATION_ENABLE=1
persist.radio.VT_CAM_INTERFACE=2
persist.radio.VT_ENABLE=1
persist.radio.VT_HYBRID_ENABLE=1
persist.radio.add_power_save=1
persist.radio.apm_mdm_not_pwdn=1
persist.radio.videopause.mode=1
persist.radio.volte.dan_support=true
persist.rcs.supported=1
persist.rmnet.data.enable=true
persist.sensors.pocket_delay=1000
persist.service.adb.enable=0
persist.service.bdroid.ssrlvl=3
persist.service.clearaudio.enable=1
persist.service.clearphase.enable=1
persist.service.debuggable=0
persist.service.dseehx.enable=0
persist.service.enhance.enable=1
persist.service.sforce.enable=1
persist.service.swiqi3.enable=1
persist.service.xfrm.enable=1
persist.service.xloud.enable=1
persist.service.xrfm.mode=1
persist.speaker.prot.enable=false
persist.sys.app_rotation=1
persist.sys.colorgamut.mode=1
persist.sys.composition.type=gpu
persist.sys.dalvik.multithread=true
persist.sys.force_highendgfx=true
persist.sys.hiddenmenu.type=4
persist.sys.highlux.menu_on=1
persist.sys.isUsbOtgEnabled=1
persist.sys.media.avsync=true
persist.sys.purgeable_assets=1
persist.sys.root_access=1
persist.sys.scrollingcache=1
persist.sys.sdcardfs=force_on
persist.sys.ssr.enable_ramdumps=1
persist.sys.storage_preload=1
persist.sys.strictmode.disable=1
persist.sys.strictmode.visual=0
persist.sys.ui.hw=1
persist.sys.usb.config=charging
persist.sys.usb.factory=0
persist.sys.use_32bpp_alpha=1
persist.sys.use_dithering=1
persist.sys.video.enhancer=1
persist.sys.wfd.virtual=0
persist.telephony.support.ipv4=1
persist.telephony.support.ipv6=1
persist.timed.enable=true
persist.ts.rtmakeup=false
persist.tuning.qdcm=1
persist.vendor.audio.ras.enabled=true
persist.vendor.audio.speaker.prot.enable=false
persist.vendor.radio.add_power_save=1
persist.vendor.radio.wait_for_pbm=1
persist.volte_enalbed_by_hw=1
persist.zygote.preload_threads=4
pm.dexopt.ab-ota=quicken
pm.dexopt.bg-dexopt=quicken
pm.dexopt.boot=verify-profile
pm.dexopt.core-app=quicken
pm.dexopt.first-boot=verify-at-runtime
pm.dexopt.forced-dexopt=quicken
pm.dexopt.install=interpret-only
pm.dexopt.nsys-library=quicken
pm.dexopt.shared-apk=quicken
profiler.force_disable_err_rpt=1
profiler.force_disable_ulog=1
qcom.hw.aac.encoder=true
qcom.thermal=thermal-engine
qdcm.diagonal_matrix_mode=1
qdcm.only_pcc_for_trans=1
ro.adb.secure=0
ro.afwdata.LGfeatureset=NAOBASE
ro.apn.uservalue.protocol=IPV4V6
ro.astcenc.astcsupport=1
ro.audio.hifi=true
ro.bionic.ld.warning=1
ro.bluetooth.a4wp=true
ro.bluetooth.alwaysbleon=true
ro.bluetooth.emb_wp_mode=true
ro.bluetooth.remote.autoconnect=true
ro.bluetooth.wipower=true
ro.boot.vendor.overlay.theme=Pixel
ro.build.PTP_Feature=true
ro.build.chinasense=7.4.9
ro.build.display.id=SNAPPATCH 18.2
ro.build.display_manufacture_sn=1
ro.build.id=SNAPPATCH 18.2
ro.build.overseas=1
ro.build.selinux=0
ro.build.sense.version=8.0
ro.build.shutdown_timeout=0