From an operational viewpoint I seem to recall that if you put in an enroute offset in the FMC on a Boeing, it ceases at the beginning of a STAR. (Don't know about Airbus). But I've never tried using one, once established tracking a STAR. Maybe next flight if I'm bored.
As mentioned just stay above the profile you're following and let ATC know what you need if you need it (increased spacing, a different heading).
I dunno. Never found it to be a huge issue operating into DXB for many years. Some occasional bumps, sure. Nothing crazy like the CL-604.