High Disk and CPU usage when imageScans Is enabled in K9s

[lbenz]

Describe the bug
When the imageScans feature is enabled in K9s, the application generates an excessive amount of disk write I/O. Additionally, disk usage continues to grow over time without stabilizing. It appears that Docker image storage is also increasing significantly during this time.
On top of that, CPU usage is abnormally high even when K9s is idle or running in the background.

To Reproduce
Steps to reproduce the behavior:

1. Install WSL 2 on windows.
2. Enable the imageScans feature in the K9s configuration file.
3. Start K9s in a cluster.
4. Observe that disk write I/O and CPU activity becomes very high, the disk usage continues to grow over time.

Expected behavior
Does the imageScans feature automatically download Docker images in the background ? The size of Docker images on disk keeps growing unexpectedly while this feature is enabled.

Screenshots
3 minutes after starting k9s with imageScans:

Windows Task Manager:

WSL HTOP:

Versions:

• OS: WSL Version: 2.6.0.0, Kernel Version: 6.6.87.2-1, WSLg Version: 1.0.66, Windows Version: 10.0.22631.5624
• K9s: v0.32.5
• K8s: v1.28.15

Additional context

Docker disk usage before:

docker system df
TYPE            TOTAL     ACTIVE    SIZE      RECLAIMABLE
Images          22        22        9.112GB   834MB (9%)
Containers      30        24        140.7MB   0B (0%)
Local Volumes   1823      18        30.81GB   30.71GB (99%)
Build Cache     100       0         1.522GB   1.522GB

Docker disk usage after 3 minutes:

docker system df
TYPE            TOTAL     ACTIVE    SIZE      RECLAIMABLE
Images          33        22        13.82GB   5.543GB (40%)
Containers      30        24        140.8MB   0B (0%)
Local Volumes   1823      18        30.81GB   30.71GB (99%)
Build Cache     100       0         1.522GB   1.522GB