I have the exact same problems and it seems to happen to BF1 on DX12 as well. Its almost like rubberbanding without going backwards and having a stable and good connection.
i5820k, 16GB RAM and also a r9 290x.
I haven't figured out a solution yet. Yes, it does seem like rubberbanding while not losing fps and having a good connection. I have no idea at this point. It is fine when I'm not moving too much, but the moment I either start running or drive a vehicle it happens. Hopefully someone sees this and knows of a solution. Otherwise I might try to revert back to previous version.