How to effectively develop in Julia?

[amit1]

I have checked in REPL and Pluto notebooks (after each cell the notebook show the execution time). And for me almost every thing timed same. That is why I assumed it to be normal.
(I was using it for trying the codes of the book Statistical Rethinking)
Eg.:

using Plots, StatsKit
# takes about 4 sec

using StatisticalRethinking
# 126 seconds!

begin
	pgrid = 0.0:0.01:1.0
	prior = ones(length(pgrid))
	likelihood1 = pdf.(Binomial.(3,pgrid),3).*prior
	likelihood2 = pdf.(Binomial.(4,pgrid),3).*prior
	likelihood3 = pdf.(Binomial.(7,pgrid),5).*prior
	likelihood4 = pdf.(Binomial.(7,pgrid),5).*prior
	likelihood1 = likelihood1./sum(likelihood1)
	likelihood2 = likelihood2./sum(likelihood2)
	likelihood3 = likelihood3./sum(likelihood3)
	likelihood4 = likelihood4./sum(likelihood4)
end
# 15 seconds

begin
	plot(pgrid, likelihood1)
	plot!(pgrid,likelihood2)
	plot!(pgrid,likelihood3)
	plot!(pgrid,likelihood4)
end
# 14 seconds

I also asked similar question here first in hopes to get some clue on how to speedup things:

How to use Pluto with DrWatson effectively?

I would like to use Pkg, DrWatson and Pluto notebooks as my main workflow. However I am not able to understand how to effectively use it. Mostly every notebook i open it takes about a min to load libraries. For example during loading a notebook, following codeblock always takes about a min to execute. begin @quickactivate "StatisticalRethinkingTuring" using StatisticalRethinking end I was under impression that libraries are slow for the first time, as they are precompiled, following that eve…

All of the above was running in Pkg environment StatisticalRethinkingTuring.jl (Link
Here ). That I initialized as per instructions

cd StatisticalRethinkingTuring.jl
julia
julia >]
(@v1.6) pkg> activate .
(@v1.6) pkg> initialize
julia > using Pluto
julia > Pluto.run()

Julia version 1.6
MacOS Mojave, Intel Corei5 2.5 GHz (2012), 8GB ram