A good resume should only contain relevant points that benefit your core argument (e.g. Why should you get hired) This will effectively make your CV more pleasing the recruiter’s eyes, while presenting all your information in very good detail.
Use effective actions words such as like prepared, managed, developed, etc.… Avoid using the same verb over and over again, doing so makes your resume more professional. Use efficient word choices to clear up some space. Get rid of over-flowering adverbs or adjectives. Lastly, be positive! Don’t include negative information that don’t affect your performance in the work place.