To change the sensitivity of an iPhone's home button, open the "Settings" app → tap General → tap Accessibility → scroll to "Home button" → tap Home button → select a speed → tap the home button.
Steps

Step 1. Open the "Settings" application

Step 2. Tap General

Step 3. Tap Accessibility

Step 4. Scroll until you find "Home Button"

Step 5. Tap Home button

Step 6. Adjust the pressure rate
This section allows you to change the time interval you will have to wait between double or triple clicks to go to the main screen.
By touching the available options ("Default", "Slow", "Very slow"), a preview of the various pressure speeds is shown

Step 7. Tap the home button
This will update the sensitivity of the home button and see the effects made by the change.