iPhone charges too fast

What is the battery health of your iPhone, shown in Settings -> Battery -> Battery Health? A failing battery can appear to charge very fast, because it does not have much usable capacity to charge. Especially with a USB-C connection, which can provide 20 volts as opposed to the prior 5 volt standard.

Your profile states you have iOS 16 installed. That is beta-quality software. Does the same thing happen with an officially released iOS 15 installed?

It can’t be abnormal, because the charger is a microcircuit in the phone. Depending on where you start - If you start at zero (and you never should let it get that low) it will charge to 50% in 30 minutes, then 80% in another 5-10 minutes, then slow down to a 5 watt rate, which tapers to zero at 100%. So the last 20% to reach 100% might take an hour more.

What is “abnormally fast”? An iPhone SE should charge to 50% in about 30 minutes using a USB-C power source. It should then slow down and reach full charge in another 60-90 minutes.