Test Case Execution very slow

Hi everyone,

I using Katalon Studio 7.9.1 to test a web application on Chrome browser, but the Test cases run slowly. Some test steps execute in milisecods while others to up to 31 secs.
I have disabled the smart wait, the delay between actions is 0 and I used System proxy configuration, but there is still no change in the speed of execution. Could someone have some hints on how I can solve this issue?
Thanks

Below is the screenshot of the log Viewer