Excessive CPU usage while playing

Anyone have issue where Lin is the only application and it starts eating up huge % of CPU resources? I have a quad-core 3.0ghz processor and i’ll start to slow way down in game, and when i check, lineage is pulling 60%+ of my CPU. Then after a minute or two or five, it speeds back up. The monitor doesn’t show network an issue and no other apps are draining CPU. Just Lineage. This started for me about a week ago.