**System Information**
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 445.75
**Blender Version**
Broken: version: 2.83.0, branch: master, commit date: 2020-06-03 14:38, hash: `rB211b6c29f771`
Worked: (newest version of Blender that worked as expected)
**Short description of error**
2.83 solid viewport shading work slowly than 2.82 when shadows is on
**Exact steps for others to reproduce the error**
{F8638907}