LR Processing of X10 RAW files
You either need to keep "Detail" down to very small values while increasing Sharpness, or the other way around. The combination of both increases noise (plus reticulation).
Also the last time I tried LR was not able to get the same detail/information out of X10 raws as the out-of-camera JPGs could. LR developer Erik Chan acknowledged this as being known and maybe being worked on in the future (no time-frame given, so it may never happen).