That’s just one place; what about photo processing? Launching apps? Opening attachments? Literally everything you do on the device is faster when the CPU is faster.
For example, per Tom’s Hardware:
Also
The iPhone 8 also opened more demanding apps faster than its predecessor and the top Android phone right now, although those differences were less dramatic. It took the iPhone 8 11 seconds to fully load the Injustice 2 game, compared to 14.53 seconds for the iPhone 7 Plus and 19 seconds for the Note 8.
So you’re saying users wouldn’t notice any of this because fuck performance who cares?