Firstly, try to comprehend what is written. Don't jump to replying. Did I say he was not capable of bowling quick? Speed reference can only be given post 1999, from when speed guns came into effect. And by then, Akram was never a 142+ bowler.
And you say Akram bowled at 150? In which case, please share the details of the matches, and quote the official recorded speed, either youtube or officially recognized speed. Please do that. If you can't, then don't claim something which you can't substantiate.