Perhaps there is too much technology these days?
After all, it's just a fork truck shifting pallets.

Get a more basic truck and manage the people better.

I recall our place down in the Midlands, we had some senior sales guy in from Crown, banging on about the technology, when asked about lead times, failed to give a direct answer and would come back to us with an update, that was 8 weeks ago, perhaps he lost the magic beans, he certainly lost us.
Briggs were more switched on for us, got us some good quality rental trucks to cover the shortages.