I took a look at both the mod code and the modding API. pumping_speed doesn't have a hook to be modified by quality, so while the tooltip says it pumps at a high rate, the underlying code is limited to pumping at twice the speed of a base pump unless you set it to 24000/s in the startup settings. You could probably fork this and add a bunch of if statements using QualityID to set the pumping speed in data-updates.lua, but it's not something I personally will do.
