[SOLVED] Kanban - quite slow - is it expected ?

So everything seems to be pretty fast, except kanban.
When i click on it, it takes about 15 seconds to load.

I activated "script" in global settings, and watched the logs.
I see a lot of calls like this:

2024-12-06 15:41:36.982 ..... SCRIPT .... [3]  getAccessControlRights(obj=Ticket #121)
2024-12-06 15:41:37.120 ..... SCRIPT .... [3]  securityGetAccessRightYesNo ( menuName=menuTicket, accessType=update, obj=Ticket #122, user=)
2024-12-06 15:41:37.120 ..... SCRIPT .... [3]  securityGetAccessRight(menuName=menuTicket, accessType=update, obj=Ticket #122, user=User #3)
2024-12-06 15:41:37.120 ..... SCRIPT .... [3]  getAccessControlRights(obj=Ticket #122)
2024-12-06 15:41:37.126 ..... SCRIPT .... [3]  securityGetAccessRightYesNo ( menuName=menuTicket, accessType=update, obj=Ticket #122, user=)
2024-12-06 15:41:37.126 ..... SCRIPT .... [3]  securityGetAccessRight(menuName=menuTicket, accessType=update, obj=Ticket #122, user=User #3)
2024-12-06 15:41:37.126 ..... SCRIPT .... [3]  getAccessControlRights(obj=Ticket #122)
2024-12-06 15:41:37.280 ..... SCRIPT .... [3]  securityGetAccessRightYesNo ( menuName=menuTicket, accessType=update, obj=Ticket #123, user=)
2024-12-06 15:41:37.280 ..... SCRIPT .... [3]  securityGetAccessRight(menuName=menuTicket, accessType=update, obj=Ticket #123, user=User #3)
2024-12-06 15:41:37.281 ..... SCRIPT .... [3]  getAccessControlRights(obj=Ticket #123)
2024-12-06 15:41:37.286 ..... SCRIPT .... [3]  securityGetAccessRightYesNo ( menuName=menuTicket, accessType=update, obj=Ticket #123, user=)
2024-12-06 15:41:37.287 ..... SCRIPT .... [3]  securityGetAccessRight(menuName=menuTicket, accessType=update, obj=Ticket #123, user=User #3)
2024-12-06 15:41:37.287 ..... SCRIPT .... [3]  getAccessControlRights(obj=Ticket #123)
2024-12-06 15:41:37.424 ..... SCRIPT .... [3]  securityGetAccessRightYesNo ( menuName=menuTicket, accessType=update, obj=Ticket #124, user=)



So i have about 100-130 tickets, and it seems it calls these methods for each ticket:
- getAccessControlRights
- securityGetAccessRightYesNo
- securityGetAccessRight

Should it take this long to load ?
Is there something you think i should check ?

Its 11.4.2 .

This is what i have selected on the kanban:
Display on kanban: nothing selected
Display on tiles:
- responsible
- priority
- urgency
- planned end date
 

It is a ticket status type kanban.
I have tickets added to a project that has a workflow with less columns (6 with backlog).
I have a new workflow defined for the project type used for the projects.
I only use the columns i need and allow all to change from one status to the other.