inventree-part-update performance regression updating from 1.0.x to 1.1.x

[Jorropo]

I have updated inventree to 1.1.3 from 1.0.I.dont.remember and inventree-part-update runs 5x~20x slower.
I doubt it's an issue with one of the supplier being slow given the before and after tries had 1hrs difference.

It logs the steps and I can observe the slow ones are things like:

successfully setup categories!

searching for TPD2E001DRLR
...

All the ones were it must interact with the inventree server.

I have wired LAN on both sides so it's not a network issue.
I didn't debugged anything beyond looking at htop on the inventree server and nothing looks suspicious (~6% × 4 cores CPU usage; memory is good).

[Jorropo]

Well nvm I should have been more careful before claiming it's not a network issue:

64 bytes from ... icmp_seq=1 ttl=64 time=1059 ms
64 bytes from ... icmp_seq=2 ttl=64 time=144 ms
64 bytes from ... icmp_seq=3 ttl=64 time=559 ms
64 bytes from ... icmp_seq=4 ttl=64 time=611 ms
64 bytes from ... icmp_seq=5 ttl=64 time=100 ms
64 bytes from ... icmp_seq=6 ttl=64 time=643 ms

[Jorropo]

Plugging and unplugging the cable on the server fixed the issue ✨.