No, it wouldn’t. Too many people’s votes don’t matter as they live in safe constituencies. This leads to either holding your nose to vote for a party you dislike less than the the other, or disengaging with parliamentary politics altogether.
It needs changing. It also needs an elected second chamber IMVHO. Needn’t cost any more than now. 500 MPs and 100 senators would give us less politicos than we currently have in the commons.