well my pc is a laptop
Processor: Intel Atom N455
I think that you installed it using the canberra modules.
so the thing is that i compiled the program from the git then i followed the instructions that webupd8 shared so here's a link with the instructions:
well my pc runs smoothly, i can say it didn't make my pc slower it just kept the same way so compile it from the git and erase the canberra module thing then follow the instructions of webupd8 wich is creating a file and place it in /etc/profiles.d
(the only thing that made my pc slower was the vala plugin but i think i installed it wrong because there is not enough info in the web about how to install it)
PD: if you dont understand how bad is my pc the best example i have is i cant log to facebook and for messenger messaging i have to use a plugin in pidgin