OP manager 11.5 widgets and correct oid for centos servers

OP manager 11.5 widgets and correct oid for centos servers

I manage several centos servers, apparently the widgets display a different value it goes to show they might be using a different oid for example memory utilization is different on a linux environment thus it will show 99% utilizationn thouhg we all know that linux machines handle memory in a different maner

Plus the built in snmp monitors are wrong, we had to create custom moniotrs for it to work

is there any way we can correct this