HCT desire

I have had the mobile phone for a 2 years and the biggest problem I came across was the ear piece which the voice quality was so bad that I had to ask in a umber of times to text me instead. The mobile phone has been sent for repair three times to 3G and the diagnoses came negative. IT has almost 1GHz processing power but I doubted the software designed utilised effectively all the powers because which taping on the anything there is always a slight delays.