Potential performance issues with requests to DB and HTML rendering

[volodymyrdovhan]

Hello,
Plugin retrieves and renders large datasets without pagination or limits, which can cause memory issues and slow page loads on production systems.

Documentation:

• https://moodledev.io/docs/4.5/apis/core/dml#performance

Code excerpts:

• File: lib.php

280:     // Get all non-admin, non-guest, confirmed users.
281:     $allusers = $DB->get_records_select('user',
282:         "deleted = 0 AND suspended = 0 AND confirmed = 1 AND id > 2",
283:         null, '', 'id');