AMD settings to try
hope this helps at least a few playersok the guy i helped with his screen freeze is on win 7 but here is the pic of his settings .
if you are on win 10 you should look at running razer cortex to close unnecessary apps and win update for gaming . you can find this at https://www.razerzone.com/gb-en/cortex/boost.
then he followed these ingame settings.