Need Help debugging performance issue (SOLVED)

[smfabac]

Hello Steve, 
the issue has been resolved in version 1.13.0. 
I also recommend unchecking the box [Do not check the date].

Looks good with 1.13.0:
Last Sync :Wednesday, December 06, 2023 17:51:01 --> Local clock offset was 0.010000 seconds
Last Sync :Wednesday, December 06, 2023 17:56:01 --> Local clock offset was 0.006000 seconds
Last Sync :Wednesday, December 06, 2023 18:01:01 --> Local clock offset was 0.000000 seconds
Last Sync :Wednesday, December 06, 2023 18:06:01 --> Local clock offset was -0.003000 seconds
Last Sync :Wednesday, December 06, 2023 18:11:01 --> Local clock offset was -0.007000 seconds
Last Sync :Wednesday, December 06, 2023 18:16:01 --> Local clock offset was 0.006000 seconds
Last Sync :Wednesday, December 06, 2023 18:21:01 --> Local clock offset was -0.002000 seconds
...
Last Sync :Wednesday, December 06, 2023 23:51:01 --> Local clock offset was 0.000000 seconds
Last Sync :Wednesday, December 06, 2023 23:56:01 --> Local clock offset was 0.007000 seconds
Last Sync :Thursday, December 07, 2023 00:01:01 --> Local clock offset was -0.004000 seconds
Last Sync :Thursday, December 07, 2023 00:06:00 --> Local clock offset was 0.003000 seconds
Last Sync :Thursday, December 07, 2023 00:11:01 --> Local clock offset was 0.008000 seconds

I've set 60 minutes as you suggested, left BktTimeSynclog check box ticked, unchecked "Diagnostic Log" and cleared it.

Thanks again.
Steve