If you define 'speeding' as driving above the speed limit, then FSD absolutely speeds.
"FSD (Supervised) can contextually drive above the speed limit or the predicted road speed to match the flow of traffic. [The Max Speed Offset Setting] specifies the maximum speed it is allowed to drive as a percentage offset applied to the speed limit of the road or the predicted road speed."
People can configure this to 40% above the speed limit if they wish. I'm not sure what the default is.
I own FSD. FSD will travel at the speed of traffic. The % above the speed limit you set doesn't change how it drives for the most part.
The only way FSD will go wildly faster than traffic is if you push the accelerator on purpose, at which point the car beeps and reminds you that it won't stop while you're pushing it.
"FSD (Supervised) can contextually drive above the speed limit or the predicted road speed to match the flow of traffic. [The Max Speed Offset Setting] specifies the maximum speed it is allowed to drive as a percentage offset applied to the speed limit of the road or the predicted road speed."
People can configure this to 40% above the speed limit if they wish. I'm not sure what the default is.