my iPhone 14pro seems like it is running slow

Please perform a Forced Restart procedure as shown below, that should fix any software issues you may be having. Be sure to perform it quickly, and ignore the slider that appears midway.

• Press and quickly release the volume up button
• Press and quickly release the volume down button
• Press and hold the side button until you see the Apple Logo

Marglo wrote:

It seems like my iPhone 14Pro is running not responding quickly

Force restart iPhone - Apple Support