Hey!
This is indeed super old code so it’s tough to say the exact thought, though the clamping is likely meant to prevent unwanted behavior when the delta gets extremely large since many things may be multiplying by this value. I leave the editor performance stats on as well and hadn’t noticed, though I also disable “Use Less CPU when in Background” since a slow editor feels bad in a multi-monitor context. You could try leaving the engine on a breakpoint over a weekend to see if anything strange happens when you resume, but it’s likely just an abundance of caution since we can’t be sure how delta time will be used throughout the engine.
Best,
Cody