Screen tearing pi4b CRT composite

[Crush]

So i found out early that the pi4b is not capable of switching resolution back and forth over composite, so I'm just running it on 288p.
But i find there's massive screen tearing, especially in 2D games.
Is there any way to fix this issue? I love my Pi3b and everything but I'd really like to play some games i can't play on that one and experience them on my CRT.

The only suggestions i can find is of people changing "dtoverlay=vc4-fkms-v3d" in to "dtoverlay=vc4-kms-v3d,composite=1"
But that results in an error that doesn't fully display. ! (Picture: https://drive.google.com/file/d/17I_fpFsN5VMBN4UsQvAy47fEEjbkbUa_/view )

Pi model 4b
retropie version: 4.8.2
CRT: PAL 288p/576i 50Hz
config.txt: ...

# For more options and information see
# http://rpf.io/configtxt
# Some settings may impact device functionality. See link above for details

# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1

# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1

# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16

# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720

# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1

# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1

# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2

# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4

# uncomment for composite PAL
#sdtv_mode=2

#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800

# Uncomment some or all of these to enable the optional hardware interfaces
dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on
# Uncomment this to enable infrared communication.
#dtoverlay=gpio-ir,gpio_pin=17
#dtoverlay=gpio-ir-tx,gpio_pin=18

# Additional overlays and parameters are documented /boot/overlays/README

# Enable audio (loads snd_bcm2835)
dtparam=audio=on

[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
dtoverlay=vc4-fkms-v3d
max_framebuffers=2

[all]

dtoverlay=vc4-fkms-v3d
overscan_scale=1
sdtv_mode=2
sdtv_mode=18
#sdtv_aspect=1
disable_overscan=1
overscan_left=26
overscan_right=14
overscan_top=12
overscan_bottom=10
enable_tvout=1
enable_uart=1

[sirhenrythe5th]

@Crush i also would love to run my Pi4 on my CRTs, but i still have no solution for that :/
Composite looks awful and throttles the performance, Pi2Scart does not work as well as on the Pi3, Gert666 as well, seems to be hopeless.

[Crush]

The issue seems to be specific to RetroArch, standalone emu like ReDream look both sharper and don't have screen tearing.

In RetroArch.cfg i've already set the following to no avail:

video_refresh_rate = "50.000000"
video_vsync = "true"