You can help minimize recovery time, by changing the recovery interval configuration parameter. The default value of 5 minutes per database works for most installations. Reduce this value only if functional requirements dictate a faster recovery period. It can increase the amount of I/O required.
See “Tuning the recovery interval”.
Recovery speed may also be affected by the value of the housekeeper free write percent configuration parameter. The default value of this parameter allows the server’s housekeeper task to write dirty buffers to disk during the server’s idle cycles, as long as disk I/O is not increased by more than 20 percent.