No Logos 4 for me

As a long time user of Logos' Libronix, I was excited to hear that version 4 had arrived. My excitement is much diminished. I downloaded the free software upgrades to try them out. The PC version loaded and runs, but it runs s-l-o-w-l-y. I have have a 2 year old iMac running Parallels 3; Libronix 3 runs smoothly, no problems. Libronix 4 is too slow to be usable. I also loaded the Mac version, and it also runs...sorta. It's alpha software and acts like it; basic functionality is not there, and it crashes all the time. Perhaps newer versions will work well--I certainly hope so!--but for now I'll stick with version 3. Sigh.