multi-core rendering

there was an issue made 3 years ago about slow rendering, likely due to the program using only one thread. a video with 10000 frames at 60 frames per second takes over 45 minutes to render. in the screenshot below is in classic task manager on windows 10 describing the issue. note that only 1 of the 12 threads is being harnessed, leading to prolonged render time. is multi-core rendering a possible option?