Hello learned people of the Magix community forum-

I am a paid registered user of the software titled Magix MP3 maker 14 deluxe version 9.03- I have this program installed on my windows 11 desktop

I am experiencing a problem when I edit an audio clip (The editing I do is usually just selecting a sample of an original MP3 on the time lines to shorten the time using the range editor and then exporting the shortened clip as an mp3 file, I dont think it used to do this, but lately it tends to slow down the tempo on the exported clip for some reason. Has anyone else experienced this? Were you able to fix it and if so how? I think I can fix this if I adjust the tempo, and I am told I can do this from the metronome, but I cant find any icon or other reference to a metronome! Please advise how I can adjust the tempo, and Let me know if you require any screen snapshots, Many thanks