Just ckecked it out. There was no such option in 0.6U that's why i had no idea.
In 0.6W54 it was set to 10000. Crazy! Changed to 400, left 50Hz as is. Still no effect on lag. I think we better ask other people with G-series or wait till they see this discussion.
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BTW I found out why script doesn't work.
Somehow the buttons 33,36,34,2 (0.6U) now recognised as 129,130,131,132 (0.6W54).
It happened before, once after 0.6F. They were 32,35,333,1 (0.6F).
I don't think it's a wheel issue, since my Richard Burns Rally still have same key mapping from ~2015, few OS ago, and still runs well. Just FYI.
...and thank you for trying to help.