I had a serious issue with framerates in my previous match. From the start of the match it was generally below 50 FPS unless I was facing my base. It got progressively worse over time, and late-game teamfights would frequently go under 20 FPS. I had similar issues last night after the mirage patch but not nearly as bad. For whatever reason my FPS would go back to normal while respawning.
Match ID 17985337
Match ID 17985337