The length of your CV should be appropriate to the depth of your experience and your achievements.
Generally speaking, your CV should be a couple of pages of key highlights, achievements, experience, education, etc. However, if you’re in a senior position your CV might be a little bit longer than this duet to additional career history and responsibilities.
Regardless, you should ensure you consider the most relevant and important things to include when summarising your previous job role and achievements, consider whether there’s certain job roles or achievements that are more important to emphasise compared to other responsibilities, or whether there’s particular qualifications that are necessary to showcase.
Break up large pieces of text into smaller sentences and include bullet points to make is easier to read.