Didn't expect the robot to change my filter cycle math

Been running the Sigma four seasons and this week it hit me how much lift it's taking off the sand filter. Pulled my pressure log, on weeks I run the robot every day my filter psi climbs way slower than weeks I skip it for travel. Makes sense since it's grabbing silt off the floor before it ever gets to the skimmer, but I never actually quantified it before, just assumed the robot was for convenience not filter load.

Started stretching my backwash interval on robot weeks and it held fine. Small thing but it's the first time in four years of owning this pool something changed how I schedule equipment instead of just chemicals. Anyone else track this or am I overthinking a Tuesday.