Performance Issue on Reconfigure Transaction line

Summary:

Config Array Set with 2 SSPL array attribute pointing to table with 400K records, exposed on a Model config flow. SSPL don't have any filter query.

Note: Created 200 records in the array set by changing controller to 200, i.e. none of the array attribute is populated so far. All the columns are blank in array set.

Now take a look at the performance metrics below:

Update click : 1.1 min

Reconfigure transaction: 1.1 min

Save & Return: 1.1 min

Now, change the SSPL table to a table which has 10-50 rows. Now take a look at the performance metrics below:

Update click : 1-2 seconds

Reconfigure transaction: 1-2 seconds.