[JshWright]

This again?

Yes.. disabling DHE ciphers will speed things up. Please understand the security implications of what you're doing. The ephemeral Diffie-Hellman cipher suites are the only way to achieve that Perfect Forward Secrecy that's been all the rage lately (sure, there are plenty of ways to screw it up even then, but it's a prerequisite).

At least consider leaving tossing a few ECDHE ciphers at the start of the list. They're plenty fast, and are a good foundation for providing PFS for your users.