Reducing colors will reduce bandwidth but won't look that good.
As a standard we'll run 15bit color over a WAN link.
To increase speed you could:
- Increase the size of your WAN link
- Ensure the WAN link is only being used for your terminal server sessions (eg if head office is also using that connection for standard internet surfing and email, i'd put in a second connection like an 8/384 and route all web, mail etc traffic down that pipe to lower the load on my VPN pipe).
- Expand Networks have really cool hardware that does cool things with packets and they brag on minimum the'll give you double the bandwidth.
