Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 441.20
Broken: version: 2.82 (sub 6), branch: master, commit date: 2020-01-15 21:07, hash: `rB689a873029b9`
**Short description of error**
If there is two boolean modifiers, and the second one is off, editing it`s shape still recalculate shapes, if the first one is on.
Even if both modifiers off, editing shapes is slower than for free same shape, not bonded with modifier.
There are unnecessary calculations. Please watch video and check simple scene.
**Exact steps for others to reproduce the error**
Make dense mesh, Make 2 boolean modifiers with it (cubes, difference), switch off the second modifier and try to edit second cube.