Festival Razorback IPA was my latest brew. It's great but 5.7% is a bit stronger than I want to be drinking regularly to remain on this mortal coil

Has anybody brewed a kit like this to 25 or 26 litres, or more?
Could this produce a 4.5% ish beer whilst keeping enough, albeit less, of the flavour?
Or are there reasons to make it a no no?