like a knife through butter
steady-handed
easefully
trenchantly
comfortably
down to a science
efficient
slick as a whistle
in a walk
efficious
availing
effectuously
potent
supereffective
walk through
effectatious
expedience
quick
ultraconvenient
speedy
readily
like a charm
quim
amenity
clean
efficiently
come to one's hand
light
deft-handed
slip on
expediently
easily
legato
run like a top
snug
easy thing
well-oiled
unchallenging
inadvisably
reasonable
performantly
high speed, low drag
break a butterfly upon the wheel
facilitative
with one hand tied behind one's back
like taking candy from a baby
cleanly
quick-handed
painlessness
good