Comment 11 for bug 1627371

Added:
apt install python-psutil

in cainstance.py after import tempfile added
import psutil

In function "migrate_profiles_to_ldap"

before
for profile_id in profile_ids:
changed time.sleep(80) to time.sleep(30)
then added just after, inside the loop:

while psutil.cpu_percent() > 5: time.sleep(2)

and... success.