Config.txt parameters for Atari Arcade Fightstick Input Lag

[fbrier]

I am trying to reduce the input lag so Ms. PacMan is as playable as possible. The joystick is a Microcenter Atari Arcade Fightstick. With the default config, the Ms Pacman sprite was lagging, then jumping forward. I followed the Input Lag documentation and added the following to the end of the /boot/config.txt:

# Added to reduce input lag from https://retropie.org.uk/docs/Input-Lag/
edid_content_type=4
run_ahead_enabled = "true"
run_ahead_frames = "1"
run_ahead_secondary_instance = "true"
video_frame_delay = 4
video_max_swapchain_images = 2

The jumping back and forth of the sprite is gone, but the lag still negatively affects game play. It seems like this is a fairly popular joystick and lots of people have it working well, plus there are a number of groups that have entire images with firmware. Could someone share their config.txt parameters for the Atari Arcade Fightstick? Or make recommendations on which parameters should be changed/removed/added? Thank you.

RetroPie 4.8.2 is installed on a Raspberry Pi 4B with the 5.10.103-v7l+ #1529 SMP kernel. I have not made any other tweaks. No Bluetooth devices are configured or paired.