Adjust delayed reduction test to run in reasonable time

[irfanbozkurt]

Description

Unnecessarily long test shortened from 21s to ~0.1s

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 73.22%. Comparing base (eb14150) to head (c938d51).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #853   +/-   ##
=======================================
  Coverage   73.22%   73.22%           
=======================================
  Files         154      154           
  Lines       35165    35165           
=======================================
  Hits        25750    25750           
  Misses       9415     9415           

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