[otrs] Question about Database Connection (mssql)

Hello   I am trying to connect my otrs installation to a mssql database. I am using this connection string but it is really slow and it is impacting the system performance. It connects but the performance is far away from mysql.   $Self->{'Database::Type'} = q/mssql/; $Self->{'Database'} = q/otrs/; $Self->{'DatabaseUser'} = q/jurl/; $Self->{'DatabasePw'} = q/hohoho/; $Self->{DatabaseDSN} = q/DBI:ODBC:driver={SQL Server};Server=192.168.101.22,1433;database=otrs;/;   Please, after Googling and search in the list, can somebody provide an alternative connection string?   Thank you in advance John