The Hasura MongoDB 1.0 connector has been released to provide users with cutting-edge database solutions and improve performance. Key tactics for achieving lightning-quick performance include database push-downs, query compiling, and reducing unnecessary data fetching and processing on the server's or clients' side. The Hasura MongoDB connector efficiently handles cross-collection relationships using lookup queries and incorporates access controls and permissions into its efficient framework. It also seamlessly integrates auto-generated query modeling for complex queries with multiple arguments, ensuring efficiency and optimized performance.