They will come, there are beta drivers, but unless you're suffering from compatibility problems I'm a little unclear if these drivers actually improve performance or simply attempt to better automatically match your hardware profile to a set of configuration settings.
With 'just' pop up issues you might be best off seeing if you can minimise texture size/load time with a custom cfg.
Perhaps see if a low quality setting actually runs without pop in problems. Then at least you know if there's a 'fatal' compatibility issue...
... Especially if you're using a custom cfg already you might find that lowering some quality settings to default you can get the textures to load in quicker without sacrificing the texture resolution. Use the results from - http://donotargue.com/cfg-makers/rage/ - to replace single lines/sections of an existing cfg [includes handy exlanations].