Maxrtframes (Slash Command)

Slash command

/maxrtframes number

How many frames ahead to allow buffering.

Default is 0.
Number is the amount of time in centiseconds (hundredths of a second) that game data will be stored before it appears on the screen or is available for the player to interact with. Around 100 centiseconds (or 1 second) seems to be the maximum buffer size.
/maxrtframes appears to affect all graphics in the game including the UI and chat.
When this command is used, there will appear to be a delay between input (when you press a key or click a mouse) and the output (reaction of the game). The greater the number, the more delay.
The command will stay in effect until the game client is restarted.
Increasing the data buffer can be useful if you are experiencing very bad stuttering or skipping in the game. It will mean your character's reactions will have a delay, but the graphics on the screen may appear smoother. Our most common experience with buffering today is while streaming media content. For example, the data for a video is sent to your streaming device, and it then stores and builds up the video data before it pushes it out to the screen for you to watch. This is great for movies, but setting a large buffer in video games where reaction time is important can be detrimental to your experience with the game. So start with low numbers when experimenting with the buffer time.

The command can be made more or less permanent by running it automatically at log-in as a Command Line Parameter.

/maxrtframes 5