Ok, guys, it seems that I screwed it up big with the slow speed. I uploaded a new version which hopefully fixes this. Now you can choose from 3 speed modes for each level, NORMAL and FAST are both faster than the game was before and that includes the level speed and the ship's speed. Also they give you more credits to balance up the difficulty.
I have also increased the scrolling speed of achievements.
There have been complaints also about some other stuff and I'm working that as well and I will update the game as soon as the changes are ready.
The FAST mode is unlocked only after finishing level 4. Initially the FAST mode was enabled from the start, but a lot of the people that tested the game were playing it on FAST from the beginning and they were saying that the game was way too difficult. So I moved the FAST mode to levels after level 4. It's still an option that I enable it from level 1 if enough people are interested in this...
 "Betty IX"){kind=icon}