Find, copy and paste specific values.

Hey there,
I'm trying to pull out some data from sheet with 40,000~ rows and about 300 employees.
example.jpg
I need to find values >0, sort it descending (by days) and exclude few JobNames. I tried to do that with aggregate and index formulas, but it's kind of slow on weaker PCs and I'm stuck now.
So, what I need to do is this:
1. Find Employee from P1 cell
2. Copy Job, Days, Sum, Average (these columns are not next to each other)
3. Exclude few specified JobNames in R1:R2 range
4. Paste it sorted descending by Days
Ideally it would work on combobox change.
Perhaps there is a better and faster way to achieve that? Any help is greatly appreciated! Thank you.