Feat Improve performance

robert-server-batch/src/main/resources/application.properties

 #spring.data.mongodb.authentication-database= # Authentication database name.
 # Database name.
-spring.data.mongodb.database=${ROBERT_SERVER_DB_NAME:covid}
+spring.data.mongodb.database=${ROBERT_SERVER_DB_NAME:protectedRobertDB}
 #spring.data.mongodb.field-naming-strategy= # Fully qualified name of the FieldNamingStrategy to use.
 #spring.data.mongodb.grid-fs-database= # GridFS database name.
 spring.data.mongodb.host=${ROBERT_SERVER_DB_HOST:localhost}