Imam beutifies the loud recitation so his followers can listen to beautiful recitation and be inspired...
There are 4 madhab in Sunni Islam. A madhab is a codification of the practical Islam by a qualified Imam. Us laymen wouldn't know how to derive the rulings from Quran and hadith so a qualified imam does it for us.
There are 4 madhabs that differ in a minority of opinions and it is these differences that makes them different madhabs. For example, one school says faatihah has to be recited behind imam and another school says it doesn't. These differences exist as Imams can reach different opinions with the same evidences as not all 2 people understand and reason the same and Islam allows these differences as long as it is reached in all sincerity by qualified Imams.
Quran says 'do not follow your desires' and as us laymen are not qualified to derive or judge one opinion over another, this is why our desires will play a part in us attempting to do so, this is why the majority of scholars' say that laymen have to pick one madhab and stick to all of its rulings rather then pick and choose from all four
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https://islamqa.org/hanafi/askimam/84194
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Is it necessary to follow one madhab or Muslims can follow all four? | IslamQA
Is it necessary to follow one madhab or Muslims can follow all four?...[/TD]
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If you don't recite faatihah in 1st 2 rakaahs, this means you already follow Hanafi madhab.
You don't have to recite in 3rd and fourth rakaahs too based on the hadith that says 'imams recitation is followers recitation'. So Imams quite recitation suffices for us too
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https://islamqa.org/hanafi/daruliftaa-birmingham/87719
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Reciting Surah Fatiha behind the Imam | IslamQA
Reciting Surah Fatiha behind the Imam...[/TD]
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That link above says it is makru tahrima (prohibitively disliked) to recite faatihah behind imam and this means it is sinful to do so, so don't recite at all in any rakaahs