Problem solved 

> cperl-mode is as shipped with Emacs 22.1.1
> (defvar cperl-version
>    (let ((v  "Revision: 5.22"))
This is not the latest version.  ilyaz.org/software.

Dowloaded v5.23 and M-x load-file 
~/.emacs.d/cperl-mode.el-5.23 and everything work fine.

>You still did not answer "Slow with respect to WHAT?".

I can type 5-7 characters on keyboard without nothing showing under the point, and I am not so fast (300CPM).

Thanks to all.
Gordon

       
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