LG 52x extracts starting at 9x and ending at 19x.
I don't know if Easy CD Creator (I don't use it) uses a burning engine with RAM buffer.
If you use a program with RAM buffer, like Feurio, you can set up a large buffer, in order to let the burner read from there at 16x while the CDROM is still reading below 16x. I mean, the buffer will tend to get empty, but if the CDROM reaches enough speed to feed the burner (16x) before the buffer gets empty, you will save buffer underruns.
In any case, a good RAM buffer will "absorb" a lot of buffer underruns, and the writing time will be faster.
The DAE quality of LG 52x with difficult CDs isn't specially good, also. LG burners are much better buy (if you don't mind price).