No. They're better.
You will sound louder, clearer, your dispersion will improve and your back won't hurt.
As @Lozz196 says, you're sound will change. IMO it's not just a change, it's a night and day improvement, because you won't have a cab changing the sound of your amp anymore. You may be surprised what your amp actually sounds like.
Get your ears tuned in and you'll love the sound. I bought my first BF cab in 2015 and haven't used any other make since. I use various combinations of SM, SC and BB2 but the 310 looks very interesting.