When I play with or without https://mods.factorio.com/mod/HeavyExpensivePlaceables
the complexity of items remain the same. that was not what i expected, as i have HEP set to triple the ingredients

for example with or without HEP:
3.481 Script @quality-processing/data-updates.lua:156: assembling-machine-1: 9.8175 (2.1049722963201, 2.1049722963201)
3.481 Script @quality-processing/data-updates.lua:157: Recipe: input items=3, used upgrade items=6, time=6.5

That is because the complexity is computed before HEP edits the recipes. It's not even caused by the load order because HEP uses a later stage in the startup sequence.

Do you think it could fix it on the HEP side of things?
I decided there to do it the recipe calculations in final fixes, so that all changes by previous mods in data-updates would be taken into account.

I think the solution would be to move the updates done by HEP to data-updates (or to move my recipe calculations to data-final-fixes, not sure which is best) and then add HEP as (hidden) dependency to Quality Processing to make sure HEP's changes are done first.

I moved my recipe generation to final-fixes, it works with the changes done by HEP now.

Thanks a lot!
I noticed quite some excluded items in the log:
29.998 Script @quality-processing/prototype/processing_recipes.lua:163: promethium-science-pack (1)
29.999 Script @quality-processing/prototype/processing_recipes.lua:163: cs-barreled-promethium-science-pack (1)
30.000 Script @quality-processing/prototype/processing_recipes.lua:163: demolisher-egg (1)
30.001 Script @quality-processing/prototype/processing_recipes.lua:163: plasma-duct (1)
30.001 Script @quality-processing/prototype/processing_recipes.lua:163: liquid-ionit-matter (1)
30.002 Script @quality-processing/prototype/processing_recipes.lua:163: raw-matter (1)
30.002 Script @quality-processing/prototype/processing_recipes.lua:163: photonen-energy-fluid (1)
30.002 Script @quality-processing/prototype/processing_recipes.lua:163: omega-canister (1)
30.003 Script @quality-processing/prototype/processing_recipes.lua:163: high-energetic-photonen-fluid-canister (1)
30.003 Script @quality-processing/prototype/processing_recipes.lua:163: high-energetic-photonen-fluid (1)
30.004 Script @quality-processing/prototype/processing_recipes.lua:163: antimatter-fuel-rod (1)
30.004 Script @quality-processing/prototype/processing_recipes.lua:163: antimatter (1)
30.004 Script @quality-processing/prototype/processing_recipes.lua:163: exotic-matter-fuel-rod (1)
30.005 Script @quality-processing/prototype/processing_recipes.lua:163: exotic-matter (1)
30.005 Script @quality-processing/prototype/processing_recipes.lua:163: molten-platin (1)
30.005 Script @quality-processing/prototype/processing_recipes.lua:163: molten-gold (1)
30.006 Script @quality-processing/prototype/processing_recipes.lua:163: liquid-coal-matter (1)
30.006 Script @quality-processing/prototype/processing_recipes.lua:163: promethium (1)
30.007 Script @quality-processing/prototype/processing_recipes.lua:163: platin-ore (1)
30.008 Script @quality-processing/prototype/processing_recipes.lua:163: gold-ore (1)
30.009 Script @quality-processing/prototype/processing_recipes.lua:163: omega-alloy (1)
30.010 Script @quality-processing/prototype/processing_recipes.lua:163: gold-plate (1)
30.011 Script @quality-processing/prototype/processing_recipes.lua:163: critical-photon-cube (1)
30.011 Script @quality-processing/prototype/processing_recipes.lua:163: platin-plate (1)
30.011 Script @quality-processing/prototype/processing_recipes.lua:163: graphit (1)
30.012 Script @quality-processing/prototype/processing_recipes.lua:163: diamond (1)
30.012 Script @quality-processing/prototype/processing_recipes.lua:163: advanced-coil (1)
30.012 Script @quality-processing/prototype/processing_recipes.lua:163: gold-wire (1)
30.013 Script @quality-processing/prototype/processing_recipes.lua:163: omega-inductor (1)
30.013 Script @quality-processing/prototype/processing_recipes.lua:163: omega-beam (1)
30.014 Script @quality-processing/prototype/processing_recipes.lua:163: omega-gear (1)
30.014 Script @quality-processing/prototype/processing_recipes.lua:163: advanced-filter (1)
30.015 Script @quality-processing/prototype/processing_recipes.lua:163: gold-foil (1)
30.015 Script @quality-processing/prototype/processing_recipes.lua:163: platin-mesh (1)
30.015 Script @quality-processing/prototype/processing_recipes.lua:163: gold-foil-mesh (1)
30.016 Script @quality-processing/prototype/processing_recipes.lua:163: thermal-plate (1)
30.016 Script @quality-processing/prototype/processing_recipes.lua:163: omega-transformer (1)
30.017 Script @quality-processing/prototype/processing_recipes.lua:163: promethium-lens (1)
30.017 Script @quality-processing/prototype/processing_recipes.lua:163: advanced-microchip (1)
30.018 Script @quality-processing/prototype/processing_recipes.lua:163: electronic-memory (1)
30.018 Script @quality-processing/prototype/processing_recipes.lua:163: electronic-triode (1)
30.019 Script @quality-processing/prototype/processing_recipes.lua:163: photon-sensor (1)
30.019 Script @quality-processing/prototype/processing_recipes.lua:163: photon-chip (1)
30.020 Script @quality-processing/prototype/processing_recipes.lua:163: photon-processor (1)
30.020 Script @quality-processing/prototype/processing_recipes.lua:163: advanced-photon-processor (1)
30.021 Script @quality-processing/prototype/processing_recipes.lua:163: empty-fuel-rod (1)
30.022 Script @quality-processing/prototype/processing_recipes.lua:163: critical-photon-fuel-rod (1)
30.022 Script @quality-processing/prototype/processing_recipes.lua:163: photon-stream-thruster (1)
30.023 Script @quality-processing/prototype/processing_recipes.lua:163: warp-drive-engine (1)
30.023 Script @quality-processing/prototype/processing_recipes.lua:163: warp-drive-frame (1)
30.024 Script @quality-processing/prototype/processing_recipes.lua:163: exotic-matter-containment-fields-generator (1)
30.025 Script @quality-processing/prototype/processing_recipes.lua:163: gravity-fields-generator (1)
30.027 Script @quality-processing/prototype/processing_recipes.lua:163: antimatter-containment-fields-generator (1)
30.027 Script @quality-processing/prototype/processing_recipes.lua:163: photon-enrichment-chamber-mk2 (1)
30.028 Script @quality-processing/prototype/processing_recipes.lua:163: atomar-assembler (1)
30.029 Script @quality-processing/prototype/processing_recipes.lua:163: roller-factory (1)
30.029 Script @quality-processing/prototype/processing_recipes.lua:163: nano-factory (1)
30.030 Script @quality-processing/prototype/processing_recipes.lua:163: advanced-crusher (1)
30.030 Script @quality-processing/prototype/processing_recipes.lua:163: nano-fluid-factory (1)
30.031 Script @quality-processing/prototype/processing_recipes.lua:163: matter-activator (1)
30.032 Script @quality-processing/prototype/processing_recipes.lua:163: fusion-reactor-mk2 (1)
30.032 Script @quality-processing/prototype/processing_recipes.lua:163: fusion-generator-mk2 (1)
30.033 Script @quality-processing/prototype/processing_recipes.lua:163: antimatter-science-pack (1)
30.034 Script @quality-processing/prototype/processing_recipes.lua:163: omega-lab (1)
30.034 Script @quality-processing/prototype/processing_recipes.lua:163: omega-module-mk1 (1)
30.035 Script @quality-processing/prototype/processing_recipes.lua:163: omega-module-mk2 (1)
30.035 Script @quality-processing/prototype/processing_recipes.lua:163: omega-module-mk3 (1)
30.036 Script @quality-processing/prototype/processing_recipes.lua:163: omega-module-mk4 (1)
30.037 Script @quality-processing/prototype/processing_recipes.lua:163: s6x-frozen-demolisher-egg (1)
30.037 Script @quality-processing/prototype/processing_recipes.lua:163: stingfrond-seed (1)
30.038 Script @quality-processing/prototype/processing_recipes.lua:163: stingfrond-plant-greenhouse (1)

I think many are from https://mods.factorio.com/mod/Nexus
But also some other mods.

I fixed it (at least for Nexus).