Hi.

This is not Firebird issue.

You must look into something between.

For me first run is:

Total execution time: 0.078s

Second buffered is:

Total execution time: 0.000s

3 seconds is really long time. There must be something involved between.

3 seconds on even 1RPM HDD 😉is also long..

Regards,

Karol Bieniaszewski