Overclocking Pi Zero 2W
Follow the below steps
to Pi Zero 2 W 1.3GHz
Add both Lines at The Bottom of the config.txt #Overclock 1400
to use Attach a fan or heatsink
to the Pi Zero before powering on.
#Overclock 1300
arm_freq=1300
over_voltage=4 #change value(4/6) is you have enough cooling and power
#Overclock 1400
arm_freq=1400
core_freq=525
over_voltage=6
gpu_freq=700
force_turbo=1
Reboot
Measure Temperature
Reference link:
https://www.tomshardware.com/how-to/overclock-raspberry-pi-zero-2-w