IDP - check auth latency

[carmenfan]

Description

Parent issue: #5356
Requires: #5412

We need to check latency on the permissions middleware to ensure we are not increasing latency of the responses massively by validating a IDP token. This is especially sensitive on model loading endpoints where we may be fetching many bundles in one go.

If that is the case, we may want to consider what sort of strategy we should adopt to alleviate this (perhaps a periodic check instead of every request).

Goals

• As a 3DR Admin I want to ensure the latency of the system is not severely compromised by the change of IDP

Tasks

TBC