VS Code Julia language-server caching?

Tooling VS Code
11

I wonder why do you need caching in the first place, e.g. querying the doc dynamically is basically instantaneous :

julia> using Colors  
    
julia> @time Base.Docs.doc(Base.Docs.Binding(Main, :RGB))
  0.000075 seconds (19 allocations: 1.375 KiB)
  RGB is the standard Red-Green-Blue (sRGB) colorspace. Values of the individual color channels range from 0 (black)
  to 1 (saturated). If you want "Integer" storage types (e.g., 255 for full color), use N0f8(1) instead (see
  FixedPointNumbers).