Inventory lock in GOP

Summary:

Hi Experts,

We are planning to release 1000 order lines for the same item in one REST API request before scheduling step.

Few order lines got scheduled successfully but few lines go into inventory lock error randomly. (Line 1, 2,3 is processed but line-4 got into error, line 5,6 is processed and 7 got into error, Line 8,9,10, 11 processed but line 12 got into error).

Currently the "Maximum Waiting Period for Inventory Lock in Milliseconds = 10,000" (i.e. 10 Seconds) and

" Wait Time to Retry Inventory Locking in Milliseconds = 1000" (i.e. 1 Second).

How to decide/calculate what value to be updated for these setups?

Is there any rule to follow to avoid this issue?