Isx 2350 help please!?

[Dynogt17]

I have an Isx 2350 2013 in a 2014 386 peterbilt. My regens are getting more frequent. It'll regen properly 1000+ degrees today, tomorrow itll start a active regen when i come to a stop light. no change in temperature from what its been running lately which has been 550f degrees to 700f degrees on inlet & outlet temps. The next day itll regen properly again. When its in a active regen with 550f- 700f degs the truck hesitates to 1000rpm then itll shoot to 1200rpm and chuff hesitation stops. Im losing boost 27 to 28psi max, & truck is sluggish.

New in last year.
Batterys
Dpf pressure sensor
Dpf & doc blown out with air cleaning
New fuel 7th injector replaced
Backpressue, egr delta p, imap all 50k miles old
New scr 120k miles
New def doser 120k miles
New nox sensor 120k miles

Could this be a bad doc or dpf? Im lost im trying not to delete it!