Hi. I had a 1010lt (which I bought new in 2000, and lasted until I decided to upgrade a couple of years ago. Sold it, and still in use on a Win7 Pc elsewhere), and now own a RME Ucx. The latency difference is in pracsis non existent. At least for me as a guitarist.
The stability between them however, is night and day. RME is rock solid on Win 10 (had it on Win 7 until August last year with the same result) no matter what. The 1010lt had its issues after XP / Vista.
All the best.

The biggest problem is not all mobiles are built to the same standard. Unless you are talking about one of those iThings.

shawn@trustmedia.tv
Couldn't we take a load off our processors using cell phone powered vst's over USB? more ineractive also...copyright me.

Indeed we can. And even send the synth it's MIDI via wi-fi or bluetooth, while routing the audio out from the tablet/phone's headphone socket. At least, we can if we have the right compatible hardware and operating systems.