mysql performance with Dataservices 4.2

I'm testing Dataservices 4.2 with mysql 5.5.

Copy 58 000 rows  from Mysql to  another Mysql Database on the same instance 43 s

Copy 58 000 rows from mysql  to MS sqlserver 2008   3s

Copy From Oracle, MS sqlserver 2008, ...  to mysql     40 s

Copy From Oracle, MS sqlserver 2008, ...   to MS sqlserver 2008     10 S

I check also a copy  with mysql workbench  6.2 wizard from another database to mysql and the results is 10 s

Can somebody help me. is it a problem of Mysql system or a problem Dataservices- Mysql ??

Ps: i have the same problem with mysql 5.1