Slow codeception coverage in docker

I have a trouble with PHP codeception coverage report in the docker container. For example the same test with

codeception run unit

gets me (72.79s), but with coverage flag

codeception run unit --coverage --coverage-html

it gets me (4,412.27s). Some test just crushed with:

ERROR: Bad response from Docker engine.

In codeception.yml include section I set only *.php files and folders with code.

My system: Codeception 2.3.3, Docker EDGE 17.06.0-rc1-ce-mac13, Yii1 framework.

I tried to use new performance tuning by docker https://docs.docker.com/docker-for-mac/osxfs-caching/, It helped a little bit but result above already with improve.