fur matting

Hey guys! My OES is now 8 months old and I’m starting to notice a bit of matting developing on her fur more and more recently and she hasn’t had that issue until recently. I’ve consistently groomed her once every week since I got her, I’m thinking this has something to do with her new coat growing but I wanted to know if anyone had any advice on how to avoid this or how to get rid of it, I’ve read some people say that you should shave the whole dog if it gets too bad (which I don’t wanna do)