[ovirt-users] 4.2.8 to 4.3.7 > Management slow

Dear Users, I've successfully upgraded my 4 node hyperconverged system from 4.2.8 to 4.3.7. After upgrade everything seems to working fine, but the whole management system seems very slow. Spends many seconds when I clicking on "virtual machines" or I want to edit a virtual machines. The speed of vms and the IO is fine. It is running on a glusterfs (distributed replicate, on 3 node, 9 bricks). There are no errors, everything fine. but terrible slow:( The engine vm has 0.2-0.3 load. What can I do? Thanks in advance and I wish Happy New Year! Regards, Tibor