Why don't you just wake up your phone by pressing literally any other button? You got the power button, the volume buttons, and the mute switch to choose from.
The phone is fine, it doesn't need to be "fixed", you just have to learn how to use it.
Personally I have no issues with the new speed, and think it's an amazing bit of tech. But, to answer your question, the home button is the easiest one to reach when mounted to the windscreen of the truck without reaching just a little further than is comfortable so I have to adjust how I use the home button to wake the screen.