I'm thinking two ways
a) selecting the clip and modifying tempo in clip in Inspector at the bottom, where clip particulars are.
May take some trial and error, depending how much it defer from what is should be.
But check you have TimeStretch set for the clip first, Follow tempo only adjust start position of clip.
b) There are usuall timestretch options to manually just stretch right edge of clip to tempo grid.
https://s1manual.presonus.com/Content/E ... imestretch
Sounds like maybe the sample was not correctly tempo tagged in the first place. Drag the sample onto an audio track and open the Inspector. Click on the event and then set the tempo of your sample in the File Tempo window.
Methods for finding the file tempo.
You can try tapping the tempo or Melodyne can also calculate tempo for you. Another way is if you have a separate metronome just tap it and get it in the ball park and then fine tune it and keep starting right on a beat. Fine tune until it stays in time. Once you tag the file correctly it will always be in perfect synth to song tempo etc.
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