Leap 16 slow to open Full Disk Encryption TPM 2.0

Performed a pristine Tumbleweed install on a ThinkBook 15 G4 ABA using Agama / full disk encryption.

twfde:~ # LANG=C.UTF-8 fdl
Disk /dev/nvme0n1: 476.94 GiB, 512110190592 bytes, 1000215216 sectors
Disk model: SAMSUNG MZAL4512HBLU-00BL2              
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 7DBBDC49-D9D4-495E-B5FD-53CAC1F4ED46

Device           Size Type
/dev/nvme0n1p1   260M EFI System
/dev/nvme0n1p2    16M Microsoft reserved
/dev/nvme0n1p3  97.7G Microsoft basic data
/dev/nvme0n1p4     2G Windows recovery environment
/dev/nvme0n1p5 327.1G Linux filesystem
/dev/nvme0n1p6    49G Linux filesystem
/dev/nvme0n1p7     1G EFI System

Partition table entries are not in disk order.


Disk /dev/mapper/cr_root: 48.98 GiB, 52596572160 bytes, 102727680 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
twfde:~ # 

systemd-boot made encryption fully usable: autologin to KDE Wayland with no wait after entering passphrase.