how i can control the properties/fields that can be retrieved from SharePoint inside my PnP core sdk

[mvcsharepointdev]

I have this pnp core sdk code:-

var myList = await context.Web.Lists.GetByTitleAsync("Work Orders", p => p.Title,
p => p.Fields.QueryProperties(p => p.InternalName,
p => p.FieldTypeKind,
p => p.TypeAsString,
p => p.Title));
int i = 0;
var t = "";
// Do a paged retrieval of the list items
await foreach (var listItem in myList.Items)
{
// Do something with the list item
t= listItem["Created"].ToString();
i++;
}

now i am not loading the Created property, but how i were able to reference it inside my foreach loop? seems my code is loading all the properties, so how i can control which properties i want to get from SharePoint ? so i can have a better response time, where i can specify which properties need to be retrieved from SharePoint, instead of getting all properties ?

Thanks

[jansenbe]

@mvcsharepointdev : if you want to control the properties you get from SharePoint it's best to use a method that allows specifying a CAML query. These are options C and D specified in here: https://pnp.github.io/pnpcore/using-the-sdk/listitems-intro.html#reading-list-items