Render time indicator way inaccurate

25.1.0 Beta (Build 59)

Windows11

Things are rendering about as expected in this build, but the "remaining" time is way off.   This project is taking about 5 minutes to do 16 minutes (about normal with downscaling), but it's starting at 15 seconds, then slowly edging up to 45 seconds, then holding +/- 40 seconds the whole time. 

Does this in both direct timeline render and AME (25.1.b57)