lagger
lagfest
pinch point
bottleneck
lazy
blundersome
tomorrower
morepork
overfunctioner
shirker
ultraslow
rate limiter
sullen
sloomy
troglodyte
tail dragger
sloggish
slowass
glacial
slacker
slow as tar
all it's cracked up to be
slackener
bovine
steady
poky
lethargic
gluggy
lag
lazy ass
behind
slow
doodlebug
lapser
clutterer
administrator
slower
swear
laze
dog slow
delayer
garbageware
short bus
belly itcher
slackerish
lentitudinous
dwindler
slow as a snail
lollygagger
trailer
dawdler
laggard
bloatware
poke
drone
lose time
seedy
procrastinator
bundler
heavy-footed
overreader
scrub
schlockware
lazyish
ping
speedless
brake
overslow
procrastinatingly
snail's pace
lentor
overshooter
drag
trick
wet end
crawl
blunderer
laggardly
dim bulb
hack
priggishly
flaked
hacker
layabout
do-nothing
slow as molasses in January
encumbered
slug
superslow
beta software
lazyitis
hoggishness
hangashore
dallier
drudge
underfunctioner