Pls try this:

DataTables::create(array(
    "options" => array(
        "order" => [], // turn off default initial sorting
        "ordering" => false, // turn off sorting ability
    )
));

You can also turn off initial sorting "order" => [] while still allowing for "ordering" => true.

If you use decimal point and thousand separator in your column pls try to set its type to "num-fmt" like this:

        'total_wrvus'                                   => [
            "label" => "Total wRVU",
            "type"  => "num-fmt", // sort types: "num", "num-fmt", "date", "string"
            "decimals" => 2,
            "sum",
        ],

Let us know how it works for you. Tks,