Looks perfect to me, less than 13 seconds of render time on a GTX 1060, just use denoising, blender 3.0's Denoising is Pure Magic! (gtx 1060 + 4770k) : r/blender
Old Mainstream GPU: GeForce GTX 960 vs. GTX 1660 & RTX 2060 | TechSpot
Tested: Optix for GTX - The Good and the Bad - Technical Support - Blender Artists Community
GTX1060 on action Blender 2.78 rc2 - YouTube
BoostClock | GPU rendering in Blender v2.79b - TITAN V | GTX 1080(Ti) | GTX 980(Ti) | GTX 1060 and more ...