It's not clear what the main cause is.
When I use a CU4 VDA without SentinelOne, the login time is better. Please note that all the exceptions to be defined for the antivirus are applied.
When I deploy a new master image with SentinelOne, but a version of the OS Layer without the Windows 2024 updates (01-2024 OR 2024-02 or 2024-03), then the login times seem ok.
When I deploy a new master with VDA CU3 and SentinelOne and the updated OS Layer version, login times are better, in the sense that the 60000ms time limit is never exceeded.