It's in the OEM tuning to reduce soot output, deleted and/or tuned the spool on these baby turbos is near instantaneous. A pedal monster/derringer is your best bet if you don't want to make the jump to a true tune but it'll still have the occasional lag
Any chance it's coming out the driver side frame rail? If you drop the filter when you're changing it it takes days to stop dripping... Ask me how I know...