Terminal Became Very Slow after implementing all the files in dot folder

Hello Kevin,

I am currently enrolled in the week 4 of the curriculum.
My terminal became really slow during starting up after I implement all the file in the dot folder (takes about 9 ~ 12 sec to get ready).
And when reading RSPEC for project/practice assessment involved in having tables (SQL), the loading speed is extremely slow.
ATOM will also continuously to refresh as spec testing is happening.
I tried factory reset over the weekend and the same problem exists.
I deleted the log files but speed did not improve.
(I also had at least 3 TA to help me check my computer)

Since I am in the middle of the curriculum so computer is really important to have,
can you kindly give any suggestion on what I can do to improve the speed?