What type of Fomaspeed do you have? I believe it liths, but you want might to check. To check if any paper is lithable (useful, especially if you get your hands on some old papers) you can add a drop or two of solution B to the paper (in daylight). If the drops turn black, it won't lith. If nothing really happens (give it 2-3 minutes) then it should be okay for lith.
I love the Foma papers for lith, but I mostly use Fomatone 131 and 132. I also tend to develop at warmer temperatures (25-30 C) to help speed things up.
We have a lot of lith printers here, so feel free to ask questions.