Hi! Great to see you up and running! Or better "up and riding"! Hahaha
One hint: if you followed the guide to the point, you have ended up with a standard ST. That results in a low framerate. but you can easily compensate that by pushing the emulator from 8 to 16 mhz -> then the game runs with about the intended speed, making it able to run a track in about 1:20 to 1:45.
(If you find the STe setup: you also hear some nice sample sonds!
Edit: I just saw that you are using TOS 1.62. That should actually work with STe. So make sure that you have STEEM set to STE Mode and the Blitter Chip is switched on (options menu).