Time stretch tool question

Cubase
1

I was using this on audio drum tracks, just tweaking downbeats maybe a value of a 16th or less, and then stretching the remainder to fit the bar. I notice that then the tone or pitch of the measure is different. Is this normal, or can be set to not so affect?

To clarify, I am doing on the folder that contains the different drums on the track.

2

What algorithm is shown in the info line?

3

Nort sure what you mean. I choose the 3rd choice of the arrow, sizing applies time stretch

4

Tape styles affect pitch…it doesn’t actually specify if this is the same algo used for sizing applies timestretch but I’m guessing it is.