Copying settings from previous photo takes long time than before - Adobe lightroom classic V11.5

Hi There,

I started facing this issue since yesterday with Adobe lightroom v11.5 all of a sudden.

It took few seconds to get settings copied over from previous photo earlier but now that it takes around 3 minutes for every single photo. Also, update AI mask(subject/sky) is also taking 3 - 5 mins. Never faced this issue before. Tried uninstalling and reinstalling the app multiple times. Tried changing the settings in preferences, camera RAW purge, increased cache storage upto 100 GB etc but no luck. would you be able to help here?

about my system for your reference: 

Processor 11th Gen Intel(R) Core(TM) i7-11390H @ 3.40GHz 2.92 GHz
Installed RAM 16.0 GB (15.7 GB usable)
Device ID 652260F3-90C3-4723-A6D2-0AA4B952B19F
Product ID 00342-21975-05097-AAOEM
System type 64-bit operating system, x64-based processor

Windows specifications:

Edition Windows 11 Home
Version 21H2
Installed on ‎12/‎05/‎2022
OS build 22000.978
Experience Windows Feature Experience Pack 1000.22000.978.0