Freyja pliz show a screenshot?
You mean of the miner showing the hash?
I'm not home at the moment but I can do it when I get home if you still want.
The speed varies with different computers and GPU's, even I have all same models my speed is between 190 - 287
I think 240 is not so bad.
I use script:
--scrypt --Nfmin 4 --Nfmax 30 --StartT 1389028879 --queue 0 --scan-time 4 --expiry 2
I have -I 17, 19 and 20
This because some GPU's crash if I use higest I.
I've never had the need to use that high intensity for either jane or normal scrypt. The specs I wrote are the ones that gave me the best speed, in scrypt-jane. I have some other for scrypt.
Keep in mind that these are the specs I use and they might not give the same results for you.
The speed can vary, like halibit stated, even when using the same models so you can try someone else's spec but you might still end up having to adjust them a little bit.