WordPress plugin comparison
Why So Slow? vs Speed Optimizer
At a glance
- Speed Optimizer has more active installs: 1M+, against 70+ for Why So Slow?.
- On a typical day, Speed Optimizer is downloaded about 5,598 times, Why So Slow? about 4.
- Why So Slow? is rated higher: 5.0 out of 5 from 4 reviews, against 4.2 from 641 reviews.
- Speed Optimizer was updated more recently: Nov 2, 2026, against Sep 28, 2024 for Why So Slow?.
- Speed Optimizer is tested with a newer WordPress: 7.1.4, against 6.6.11 for Why So Slow?.
- Speed Optimizer has been around longer: since 2014, against 2019 for Why So Slow?.
Line by line
Speed Optimizer leads on 6 of 7 comparable lines.
| Metric |  Why So Slow? |  Speed Optimizer |
|---|---|---|
| Popular rank | #18,929 | #44 |
| Active installs | 70+ | 1M+ |
| Downloads, last 30 days | 76 | 3.5M |
| Rating | 5.0(4) | 4.2(641) |
| Support threads resolved | – | 57% |
| Tested up to | 6.6.11 | 7.1.4 |
| Search multiplier | ×0.07 | ×2.73 |
| Last release | 2 years ago | 7 days ago |
| Requires PHP | 7.0 | 7.0 |
From WordPress.org's public data, refreshed every night. Downloads are WordPress.org's official daily figures for the last 30 days.
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