openLdap 2.3.17 goes less quickly than 2.3.11 or 2.3.13

[Eudes LEDUCQ]

Hi,
 
I have installed openLdap 2.3.17, I have the same config than my
preceding directory (openLdap2.3.11), the same database. And the
directory openLdap2.3.17 goes less quickly  than openLdap2.3.11 and
openLdap2.3.13is it normal ?
 
thx