I have one CD32 and loading times on my unit is painfully slow, and in my case not worth using copies. I have also installed new laser with no benefit, I also try to use the laser adjustment.
I did notice that if I could somehow raise the laser closer to the disk it may work better.
BTW, my CD32 works fine using original pressed disks.
I wanted to try better quality disks to see if I could get better performance, but none are available in singles.