My iPhone battery drains by 5% with 10 minute of usage

Hey Guys,

My Iphone 14 Pro is just a few days old but i'm far from impressed with the battery life. I've done no battery draining tasks till now and i've never managed to get a full 24 hrs out of a full charge. My background apps are closed, i've updated to the latest software update and the brightness was kept relatively normal. My phone hasn't been kept in extreme temperatures either. Ex. by just having a video on youtube play my battery drained by like 5% in just 10 minutes. This doesn't make sense to me. Any help please?

[Re-Titled by Moderator]