Catering loading/unloading time in dynamic turnaround server

Adter reconfigured my ATR to include a few business class seats, I found that a lot conflicts have been added to my flight plan. Clicking into it, it is shown that it is a result of increased catering loading/unloading time, which raised from 9 minute each to 13 minutes each, taking up 8 extra minutes per flight, which is about 50% increase.

Why would loading/unloading of Shrimp Cocktail, Wine and champagne, large cold economy meal and plastic tray take that much more extra time?

And is the most easy and effective way to solve the schedule conflict is to remove those C seats?

Can the game have some option to default or choose service profile for all routes flown by a plane instead of clicking those one by one?

I understand you point as this theese few extra meals should not take longer time if you anyways load catering to your economy passengers. I don't understand why catering in an ATR would take 8 minutes as loading and unloading a couple of carts takes very little time, I know from real experience from when travelling with my grandmother who needed to be lifted into the aircraft with something similar to a catering lorry which meant that I was bored about 40 minutes before departure seeing all the processes and chatting with the pilots and staff.