@Composer321 said:
I am not using velocity xFade. I tried it but it didn't seem to make much difference.
Was the Vel X Fade turned on? If it's not turned on you won't hear a difference. For some instruments it doesn't turn itself on by default. If you're not hearing any difference than something is going on because you should hear a profound difference assuming you didn't edit any of the cell parameters.
In addition to what William said, set your Release fader to about 65 as that helps smooth out the legato lines.