Twitter ads are widely seen as ineffective versus other advertising channels (to verify for yourself, you can check r/PPC, r/marketing, and other subreddits via a site:reddit.com Google search). Results are likely lower due to poorer analytics, which translates to your ads not appearing to the most relevant people.

Google Search Ads and Facebook/Instagram ads are seen as more effective in comparison (results are likely higher as Facebook/Meta are relatively better at analytics, so advertisements appear to more relevant people).

In addition, $50 is not a lot to spend on an ad campaign. It generally takes a higher number of advertisement views by the same person (preferably across different websites and channels) to produce an intended result.