Apex Application Image file is not picked up while running test via katalon

Hi

Manually Web application is working fine but via Automation image file is not picked up properly and also response time getting very high.
Manual -
image
In automation:
image
Previously all my scripts are running successfully. yesterday there is a change in back-end. After that only i am facing this issue.
URL used is same for manual and automation.
Web driver also same.

Is this issue is caused by application(Apex Based) end or is there anything we can do in katalon to fix the same ?
Found that manual is working fine cause of cache image file. Its problem with APex application side

Found that manual is working fine cause of cache image file. Its problem with APex application side not on automation setting