Media Encoder export is super slow

I've been using Adobe products, especially After Effects and Premiere Pro, for 5-6 years now. I've never, ever, seen Adobe products render this slow. My computer hasn't changed- I even have a second high end computer I work on. I've troublshooted this issue on both. But After Effects and Premier Pro seem to export at an alarmingly slow rate. To export a 7 minute video- yes there are many graphics moving, but I have been using the same file for the past year and a half and haven't had this issue- it takes 8 hours. Here are my settings:  | H.264 |  software encoding | Mercury Playback Engine GPU Acceleration (OpenCL) |

I need to do it through Media Encoder so I can export mp4. If I do it through after effects, the file will be 75gb. And with how many times I reuse this file, I can't store videos that big. I have the same issue with batch render. Sometimes, 6/7 times, media encoder just stops rendering and never exports after a few clips, or just doesn't go past 0%. Anyways, does anyone know how to speed up the export? Or is this a new issue that we have to wait till the next update to be resolved? Or is this just the new normal? Thanks.