title: What vimrc settings to speed up scrolling?
body: <p>I use gvim pretty heavily at work, typically logged into a server farm.  This works great while I'm directly on the corporate LAN, but when I VPN in from home and resume my sessions, gvim scrolls almost intolerably slow.  </p>
  
  <p>Every time I page up or down, the scrolling does a lot of unnecessary screen refreshes before it gets to the final spot.   </p>
  
  <p>I remember browsing other people's vimrc's and seeing a setting to help with this, but I don't remember what it is.  I have ttyfast already set.  Is there anything else?</p>
  
  <p>I know this is mostly due to the VPN, but with a little tweaking, hopefully it can get better.</p>