Ivan,
The ENGLISH links play pretty firm and fast as well!
But seriously, all the links courses play firm and fast but after a big downpour they are going to play a little softer. Plenty of links courses also have low lying areas near the sea, and if the water table is high, they can get soft at times. But generally, with dry summers, firm and fast they are, plenty of run on drives and approach shots needing to land short, especially downwind.
In dry conditions, inland courses will also play firm and fast. The more heathland courses like Ganton and Hollinwell are laid out to expect some run up approach shots. Some inland courses aren't really designed for run up shots but thats what you need to do. Obviously those designed for it play much better.
Why not come to England, Scotland, Ireland or Wales and try the links courses for yourself. You will be made most welcome!
Cheers,
James