SSL cipher: improve performance

In regards to F5 config, the most significant performance improvement would come from well-optimized caching profiles, this goes for SSL and nonSSL traffic. In my opinion, forcing the use of a specific "performance-friendly" cipher is a pseudo-improvement, it would improve performance very little to nothing, furthermore, it could cut off some users who have a device which does not support your cipher.

To conclude:

1) Take a look at your caching profiles

2) Ask the front-end team to reduce the amount of GET requests a browser has to make per page load

Good luck :)

Note: The oneconnect would indeed reduce the SSL handshakes for LTM to backend server communications. One thing to keep in mind that with this option enabled, you might also want to configure X-Forwarded-For HTTP header, so that the original source IP address of request-maker can be seen in the back-end server logs.