I currently have 147 community plugins installed. Is your shitload bigger than my shitload? :-)
I don't have all of them enabled though. Only about 2/3. :-)
It's not only the number of enabled plugins that matters. Some graphical plugins eat almost no resources. But then there are other plugins that are constantly rescanning files and O is not necessarily "n", but worse than that.
You can start with setting up the following plugins to their full potential and see how it goes. :-)
Breadcrumbs
Dataview
Dynamic Table of Contents
Filename Heading Sync
Juggl
Link Favicons
Linter
Omnisearch
Spaced Repetition
Supercharged links
