Pads problem & question about sampling

Hey there all !
I've received the 2000xl today and so far two things are troubling me.

1. When I assign drum sounds to the pads and then live play some rythms and e.g. play along hi-hat (tapping 16th notes) and during this add one kick on the other pad, the tapped kick is not playing one kick sound but 3 kicks one after another like I was tapping 3 times - 16th or 32th notes.
Is there a possibility that pad sensor needs replacement ? or is there something else i should do to fix it ?

2. Now something about sampling. Previously i was using a DAW software on my PC (FL Studio). I really got used to the way the "Sampler" and "Slicer/ SliceX" (for chopping) works there. After I assign samples into pads when hit repeatedely the sample overlays itself and it's like i need to wait until it finishes then again tap the pad to play sample not to overlay on the previously played. In FL Studio when importing the sample into the "Sampler" the problem with overlaying is the same - but when hit "LOOPS/ Use loop points" the issue disappears and the sample when played repeatedely doesn't overlay itself.

ughh.. kinda complicated way of describing my issue but that's all i can do for now.
Please ask and I'll try to answer my best to get into the right point, also thanks in advance for the help !

Is there a possibility that pad sensor needs replacement ? or is there something else i should do to fix it ?

Practice, you will get better at it. Everybody does it at first. Try to pull your finger off....don't push it like a button.

After I assign samples into pads when hit repeatedely the sample overlays itself and it's like i need to wait until it finishes then again tap the pad to play sample not to overlay on the previously played

In the program edit under parameters in the bottom right there is an option that is set to 'poly'. Change this to 'mono' or 'note off'.

For exact descriptions on what these do, check the manual.

Thanks a lot that's really helpful !