Server Side paging has no effect on backend using PHP DataTables Editor class

DataTable Settings: serverSide: true, processing: true, lengthChange: false, select: true
Ajax request sent: [draw] => 1 [start] => 0 [length] => 10
Query generated by Editor class has no limits and is selecting the ~92k records.
Observing the response - entire lot of 92k records is sent back.