Is it possible to run cron with PHP-CLI to use a special php.ini

hello

we have problems with the feedapi and timeouts with the cron ...

my webhoster recommended on a dedicated server (managed - not root):

in my cron.sh would be

#!/bin/bash
php5 -c
/www/xxx.com/xxx/cms/php.ini -f
/www/xxx.com/xxx/cms//cms/cron.php

this would be wonderful to use a special php.ini ...
but we don't bring it to work - is it possible with drupal?

thanks momper