[Koha] Perf with Koha ?

Hi, I just installed Koha for a very small library, but I have some performance problem with it. I suppose that Perl is for something there, so I wonder if i can use mod_perl or FastCGI? It is possible? Somebody try? -- Bruno Marmol. Ingénieur à la Direction Information Scientifique et de la communication Email: Bruno.Marmol@Inrialpes.Fr - Tel: 04 76 61 53 04 - Fax: 04 76 61 52 52 Inria Rhône Alpes. ZIRST - 655 Av de l'Europe. - Montbonnot St Martin 38334 St Ismier Cedex - France