We recently migrated an Access frontend with a SQLServer backend to an Oracle Backend. We are using the Oracle Instant Client 12.1 drivers. Queries fetch data into DataSheets in a reasonable amount of time. However, when the users highlight rows in a datasheet and Cntl-C, it takes an extremely long time to copy the data if there are more than 500 rows. If the user tries to use the Export To Excel spreadsheet built in command, there are similar issues. Is there any tuning I can do to cut down this time?