OSPF and mass route deletion

When routes are deleted (for ex., terminating a lot of PPP tunnels for some reason in same time), it seems like each removed route is sent into separate OSPF packet that causes troubles with OSPF in some cases (for ex., there's troubles with old quagga). Is there a possibility to add some rate-limiting (for ex., limit to 10 messages per second), and aggregate separate 'route deleted' messages to one packet?