Logic Pro X Sampler Legato issue

Hi there,

In the Logic Pro X Sampler, I do bass slide with glide slightly on in legato mode, but I can't hear a stable enough legato. This is not the case with other samplers (nuance, ableton etc). Is 

this a mistake or is there something I am missing.

Here are samples that I made with Logic and Ableton.

Logic Pro X Sampler:

https://soundcloud.com/ati_musics/logic-pro-x

Ableton Sampler:

https://soundcloud.com/ati_musics/ableton-sampler

As you hear the sound of Logic Pro X Sampler its not enough legato.

I tried with Logic Pro X 10.5.1 & Logic Pro X 10.6.0 there is same result..

Any helps thanks a lot