So I tried Salix because I wanted something light and complete.
Well, surprisingly with th XFCE4.61 interface it is much eavier than KDE3.5.9 on Kaella 3.1.1, so much eavier that on a old PC having 256Mb shared RAM, Salix boots, but if I try to open any application, even Thunar, it hangs and I must finally switch off the PC....
On the contrary with the old Kaella, I can even open the fat OpenOffice2
So much tunning has to be done.
I tried on another PC with 512Mb and their also it proofed to be way slower than Slax 6.1.2 for instance. I haven't tried other distro with XFCE, because other are so old (too many needed fixed in the last 3 months, particularly with NTFS).
If I like Salix design, it's way too slow for me and I won't use until that point is fixed.
Core packages should be updated, particularly Kernel & NTFS-3G see the good PartedMagic 4.9 distro.
Finally, I would recommend to remove FireFox and replace it by the bleezing fast Iron Browser( Chrome without spying, see http://www.srware.net/en/software_srware_iron.php
) or possibly have FireFox as an additionnal package.
Might seem harsh, but I just want to push for improvements.