What exactly is your question?
You experience high bounce rate on the articles aimed at converting visitors to buying affiliate products? And other (non-converting) pages do get way more visitors?
Because those are two different things: number of visitors (people arriving) and high bounce rates (% of people leaving again after visiting).
So…
- is not getting traffic to your converting your problem?
- or are visitors going to the wrong pages?
- or is just plainly not conversing your main problem?
Because when you're able to pull in audience with some pages, then the problem will be mainly content related (in my opinion). That content does resonate. Other content doesn't. Maybe it is due to the nature of your content (e.g. game reviews may be more popular than hardware reviews?) or the way you present your content (your tendency in writing different kinds of articles).
Or perhaps there is more competition for the targeted subject? Or there is far less traffic for the targeted subject.
Do you have an idea of the total volumes for the targeted audiences and what your SERP results are on the targeted keywords?