i think that the new lance is a bit (much) too slow. Yu have to release your attack like 3 seconds before you hit your ene,y, and during taht time alot can happen, and it is really quite annoying and unjustified imo.
Apart from the fact that the new speed makes the lance hard to use on horse, it also makes the lance impossible to use on foot... with the new item slot thing i can't carry a decent sidearm which leaves me with this lance as my only on-foot weap.
Before this patch i sometimes did the same when grinding and i could get quite a few kills, but with the -10 speed, it is really really hard to use it.
Therefore i suggest that if you don't increase the speed of the lance, tehre should be a speed-buff when lances are used on foot or something... (or the other way around; speed nerf on horse and then higher overall speed)
That would really make the lance alot more balanced