In <list-11206750@2rosenthals.com>, on 11/05/24
    at 08:41 PM, "Massimo S." <ecs-isp@2rosenthals.com> said:

Hi,

doing all the tests i've found "strange" perfomances

Not so strange if you use the available tools o understand what clamscan
is doing.

Try it with --verbose --debug and this should answer most of you
questions.

clamscan -i myemail.msg
(myemail.msg is 46.525 bytes)

one minute to scan a 46KB file?..

It appears you are ignoring the 450MB of signature files.

That said your
VM seems quite sluggish.  A similar run here  using

   [d:\tmp]timer on & t_clamscan.cmd & timer off

reports

   Timer 1 off: 22:35:09  Elapsed: 0:00:21.28

This is on an old-ish MB with SATA drives and with the --verbose --debug
switch options which will slow things down.

Without these options, the reported duration is a bit better

   Timer 1 off: 22:42:01  Elapsed: 0:00:19.32

Steven