Sendfile Configuration in Centos with Apache Help

Dear Team

Please guide me how to configure sendfile in apache
already send file installation done in my server
My cms server is Google Cloud VM
Cent Os 7

My server to android application content downloading taking too much time
so i think need to configure sendfiles in appche already i change File download mode is apache

Thank you

I’ve replied to your other topic: How to Configure Send file mode in Cent OS