The unexpanded A600 is a slow as molasses, so I do not recommend it for anything, but playing floppy/hd games. One time I was so frustrated I sold the sucker. Then I got it again, could not resist, the price was good.
Anyway, The best thing to do is to get some kind of accelerator for it. At the moment, you can get the ACA620 from Amigakit.
It's probably not the best, but it does the job.