Can I reduce load times in my application by deleting addons that I am not using? 

For example, in testimonials I have downloaded "Standard Testimonial" and "Priority Review" so they no longer say web. I tried both but ended up using only "Priority Review".  If I delete the addon "Standard Testimonial" so that it will say web will that reduce my website load time? I'm thinking that since the addon "Standard Testimonial" is not in my page it is not in my website?

Any suggestions to reduce website load times using Blox Page Builder?