Hey there dont dispair! I am slow too.
As said previously practice is the key.
But seriously consider 2 things - Are your needles right for the yarn? Some yarns are just darn sticky and you end up fighting the yarn over the needles.
Also - do a check and make sure you are not twisting your stitches. Its a really common mistake and very easy to do. Twisted stitches are a *itch to work and will really slow you down.
For me these two things were really a hinderance. Once I bought GOOD needles and learned how to not twist my stitches my knitting got a lot faster! It still takes me days to knit one sock but Im not crying about the work now