> ef þér er lítið um
> if (there) is little (inclination) to you concerning (it)

Yes, I think that's right. Magnús Magnússon and Hermann Pálsson, "if
you are opposed to it."

> Glúmur svaraði vel og brá þó á sitt ráð.
> Glúm answered well and moved-quickly nevertheless on his

resolved-action.

CV, "Glum gave a gentle answer, but went on in his own way." [
http://lexicon.ff.cuni.cz/png/oi_cleasbyvigfusson/b0078.png ].

MM & HP, "...did not alter his decision."