Texture2d.Readpixel slow down performance while stand-alone exe is minimize

Hi All,

I have a 3D Character in my scene. I have exported this build and running it on windows machine. using web services i am sending the image capture command to my running application.

When the windows exe is running in forgroud, the image capture is happening in fraction of second. But if i minimize the running exe, the same command takes around 15 to 20 second to capture the same image.

I am capturing the image using Texture2d.Readpixel.

BTW i have enabled the runinbackgroung property in playersetting, still facing the issue.

can someone please help to figure out what is wrong i am doing?