I have been using the text client under X Beta. The one WU time I figured up took 9+ vs 8- under OS 9, about an hour and a half longer.
But I can let SETI run in the background while surfing, and that increases my output.
My opinion is that the text client takes longer because it is not running from a RAM disk. We do not yet have the X Memory CP. It might be possible to set up a RAM disk in Classic and run the text client there using an alias to point to the data folder, but I do not have enough memory to try that configuration. And that RAM disk would not be under X's crash protection. Bye - bye, nearly completed WU...
If anyone knows how to set up a persistent RAM disk under X, please post. I would like to speed up the text client, and reduce HD access.