I have a problem with Arpeggios

I'm trying to write a song with piano arpeggios and I wanted to be the last note to be on tempo but the note that is playing on tempo is the fisrt one. Is there any way to change that or any modification to download that you can recommend me?
It's making a big difference when listening to the song because it gives the feeling that the tempo starts on the last note, but it actually doesn't, what makes the song look like it has unexpectable time.
I'm using Musescore 4.