Take a look to it, thanks
EDIT: I had been trying to solve the problem all the morning, trying some changes, but i can´t solve it. I tried an animation and it was ok, fast and very fast if i put 120FPS, but when i began to move the bitmap horizontally it was slow again.
I run the other game i am working on, and it is a bit slow too. I didnt remember before but i usually write in C++ and Allegro in my notebook, and there it was ok. Now in my PC i get this slow speed with bitmap movements.
Before i try C++ with Allegro, i programed in Fenix/Bennu and now i am taking these games to C++. When i run my old games in Bennu, they are ok, perfect speed, so i think it is not a problem of my computer. Anyway, my computer is: AMD 3200 2GHZ, 2GB DDR and NVIDIA GEFORE 5200 128MB (drivers updated to last version). I have DirectX 9.0c, and i dont know if it has something more that should be important.
I still need your help. Without it i am lost and i am sorry for that but i would have to leave Allegro and try other libraries.