I don’t think the UFO202 has a gain control to mange the signal level - there does appear to be a volume control on it, but my understanding is that that is there to control the output level to the headphone jack for hardware monitoring.
Take a look at this sticky thread in the forum for USB soundcards we know work well with Audacity: https://forum.audacityteam.org/t/sound-card-reviews/8375/1
I use an Edirol UA-1EX soundcard for my vinyl conversions (together with a separate ART DJ-Pre11 phono preamp). I chose the Edirol because it does have a gain control to enable me to manage the signal level. The pre-amp also has itsown gain control.
I tend to use the pre-amp gain control for LP capture as the Edirol is well set up to deliver a good capture level for FM radio broadcast capture, so the two independent gain controls works very well for me.
I think that both Edirol and ARTcessories now make integated devices (like the UFO-202) that bundle the pre-amp and the USB soundcard. I probably would have bought on eof these had they been available at the time.
WC