PPSSPP Settings are shown in the video, just hit pause towards the end. Here are my overclock settings in /boot/config.txt
arm_freq=1500
gpu_freq=500
core_freq=500
sdram_freq=500
sdram_schmoo=0x02000020
over_voltage=6
sdram_over_voltage=2
Thanks to ETA Prime for his overclock guide:
https://youtu.be/aT0OX8TXRCM
The video output is 720p, but in game resolution is NOT. Add this code for 720p output mode to your TV:
hdmi_group=1
hdmi_mode=4
PSP Mini game Edge still has bad sound so it’s muted.