i import a sample that is at 125 bpm
I assume you mean import an Apple Loop and not a Sample.
How can i disable Logic from automaticaly ticking this option because i really hate that?
I don't think you can.
Logic detects that the audio file is an Apple Loop which is an enhanced audio file with embedded metadata plus transient markers. This is important to understand. Open an Apple Loop with the Apple Loop Utility and you will see what kind of information is embedded in that loop.
Only Apple Loops that have key and/or Tempo information embedded based on their Transient Markers will trigger the Follow Tempo checkbox in Logic. BTW, the term is not really correct, it should be "Follow Tempo & Pitch" because it effects both parameters if they are defined in the Apple Loop.
... because as you all know Follow tempo messes up the pitch.
That is no true. Look at the different types of audio.
1 - For Apple Loops:
"Follow Tempo" adapts to the current tempo and the key (+-transposition infor). I wouldn't call this "messing up". This is what it is supposed to do.
2 - Newly Recorded Audio Files (in the current Project):
"Follow Tempo" is deactivated. The audio file adapts to the current Tempo after the recording without chaning its pitch. However changing the Key will transpose the recording and so does the Tranposigion parameter in the Region Inspector
3 - Imported Audio FIle (non Apple Loops):
"Follow Tempo" is not available at all and you cannot change the Tempo or its pitch with any of the playback parameter. This is where you use Time and Pitch tool or other plugins. For Tempo adjustments you could also use "Flex Time", but that is another topic alltogether. Or you can re-record the imported audio file (bussing it to a new track). Now it is a newly recorded Audio File (see No2)
Hope that helps
Edgar Rothermich