my burners too fast

[wouz]

since theres noone in the psx forum i think this question counts also for this forum:
when i try to make a backup i know u have to burn it at 4x or slower. But i think the slowest speed of my burner is 8x! cuz if i use nero to burn a cd 8x is the lowest speed that i can select! and if i try to burn it with clonecd, i select 2 or 1x, but when it's busy in the burning process it just burns with 8x!
please help me cuz now my backup games have extremely long loading times, the sound isnt good and sometimes the game keeps hanging at a loading screen... and i think the problem with the burn speed is the cause of these problems.
so is there a way to slow down my burner (maybe some software)? it's a lite-on ltr-24102b and its says on front: 24x10x40x