Delete of spaces : very slow

[fracat71]

Hi all,
i have this environment:

- ALFRESCO: Community - Current version 3.2.0 (r2 2440) schema 3300
- OS: Windows xp 32 bit 
- AS: Tomcat 6.0.18
- JAVA: v1.6.0_11-b03 maximum heap size 986,125MB
- DB : Mysql 5.1.35 Community‍‍‍‍‍

I have created a complex structure of spaces and sub-spaces, the sum of spaces contained is 200.
I try to delete the parent folder it takes a lot of time (4 minutes), is it normal?

Regards,
Francesco