Is there a way to shrink entire text conversations (not font!) in Galaxy Alpha messaging?

[AC Question]

I tend to save all of my text messages/conversations that I've ever sent/received, so when I click on a contact to send them a text, our entire conversation is there when I scroll up. Is there a way to shrink it so that only part of the conversation shows up and then I can click something like "Show all messages"? Having to wait for the entire conversation to load is slowing down my phone and is really annoying. I know there are different apps that can do that, but the one I was using started to freeze and slow down my phone even more.