Hi, welcome to the forum.
My last sportsbike was a ZXR600, I used to look forward to traffic lights so I could stretch my arms and legs! Old age is very over rated.
My boots also catch on the footpegs, I put it down to my stumpy legs. I just live with it as I have had it on other bikes. I did think about rearsets but at my age they would probably make my knees worse than they are already.
Put a picture up of your bike, 600 miles is not even run in, I thought my 07 was low mileage when I bought it at 8100 miles.