Khoi Pro 
On Thi IELTS needed a study platform that could stay clear and responsive when exam-season traffic picked up.
The learning flow
The goal was to make it easy for learners to move from practice to lessons to registration without getting lost in extra interface weight.
What changed
We simplified the page hierarchy, kept the study path direct, and removed the small frictions that slow down common learner actions.
Performance lens
- WP Asset Clean Up removed unnecessary scripts from content-heavy pages.
- LiteSpeed Cache kept repeat visits responsive.
- opcache reduced backend execution cost.
- Redis cache helped repeated lookups move faster.
- Image optimization kept learning pages light.
Outcome: The platform feels more focused for study and easier to keep fast under seasonal load.
