Pending on the rest for example with an Ugly Cookie [WB] its going to affect flight...less on a drop away....regardless looking at those its time to replace...once set up its very inexpensive, quick and easy...
To answer question
yes it could affect flight..however if all three arrows in a group are off doing the same thing or the group is widening greatly you have other issues...
looking at pics you have clearance issues...most likely to an arrow porposing or fishtailing as arrow leaves bow/rest
Replacing vanes helps arrow flight...but doesnt solve other issues
Neil