Blender 2.8 slow render under mesa-18.3.2 and xvfb How I can profile timings in Blender 2.8 Eevee engine rendering process?

I have blender 2.8 (nightly build) running inside docker container, with mesa-18.3.2 (build from sources) and gallium driver set to llvmpipe. OS: Ubuntu 18.10.

Under same docker container I test 2.79 and 2.8
Times differs 10x. 
2.79: Time: 00:07.76 (Saving: 00:01.57)
2.80: Time: 01:12.40 (Saving: 00:02.29)

Too big difference here. Any ideas what should I check?

Thank you!
As was said by @Ignatiamus blender 2.80 heavily depends on GPU.
So after putting blender onto machine with GPU it starts working fast even inside docker.