I'm in the process of buying a flat at the moment and the solicitors are taking their time, I can't tell if that is just how it is or if it's their fault to be honest. The updates we get from them sounds like they are following up enquiries from the seller's solicitors but who knows. We were hoping to complete soon but looks like it might be another month or two before that happens.
I think for some solicitors, conveyancer is low priority as there isn't much money involved and there is no pressure to get it done quickly, which is why it can drag on.