@sunnyflower, I forgot to mention the "jump to this post" trick, which I think might just be the thing that would solve the time consuming, scroll issue you're encountering.

See the image below. When you + (show) or unhide the post that is being replied to, it reveals that post. Below the quoted post, you'll see "Jump to this post" in blue. Click that and you'll automatically be taken to that post. From there you can continue to read all subsequent posts in chronological order.

I think that might be the functionality that will help.