ID 480302 - Changing between large sequences in the same open project can take a while

Problem summary
Changing between large sequences in the same open project can take a while
The more clips you have, the slower it gets to open

Customer reported version
nukestudio 12.2v5

Customer reported platform
CentOS 7

Steps to reproduce

1) Open Nuke Studio

2) Open project /netshare/support/tickets/slowProject/SlowProject_v003_largeSequence.hrox

3) Open Sequence2, it takes a few seconds

4) Open Sequence3, it opens almost instantly

Expected behaviour
For the sequence to open quickly, or to have a loading bar when it's going to take a while

Actual behaviour
Nuke Studio freezes and is unusable for several seconds

Workaround
Unknown.

Reproduced by support
This bug has been reproduced in:
NukeStudio 13.0v1 - CentOS 7.5, macOS 10.15.7
Nuke Studio 11.2v1 - CentOS 7.5

Earliest version tested
Nuke Studio 11.2v1 - Earlier versions are not compatible with this project