Is Newsletters Slow? Real Benchmark Numbers for 2026

Newsletters is a WordPress plugin used on 2K+ sites. Newsletter plugin for WordPress to capture subscribers and send beautiful, bulk newsletter emails. Our 3-context benchmark shows it adds noticeable overhead (+47ms TTFB on activation).
How is this scored?
Our Benchmark Methodology
Every speed score on MakeWPFast is based on real performance measurements, not estimates. We install each plugin on a clean WordPress 6.9 setup (PHP 8.3, MariaDB, GeneratePress theme) and measure two key metrics:
PHP Memory Usage — how much additional memory the plugin consumes per request. Each doubling of memory overhead costs 10 points. High memory usage can cause crashes on shared hosting and limits how many plugins you can safely run together.
Database Queries — how many extra SQL queries the plugin runs per page load. Each 10x increase in query overhead costs 25 points. More queries mean more database work, slower pages, and harder scaling.
The score uses a logarithmic scale — the first few extra queries or megabytes matter more than going from 100 to 110 queries. This reflects real-world impact: the jump from 4 to 14 queries is far more noticeable than 100 to 110.
| Grade | Score | What it means |
|---|---|---|
| A | 90–100 | Negligible impact. Safe to install on any hosting. |
| A- | 80–89 | Very light impact. Minimal overhead on any setup. |
| B+ / B / B- | 65–79 | Light impact. Adds some overhead but manageable on most setups. |
| C+ / C / C- | 50–64 | Moderate impact. May noticeably slow down budget hosting. |
| D+ / D | 35–49 | Heavy impact. Will affect page load times. Consider alternatives. |
| F | 0–34 | Severe impact. Significant resource usage that hurts performance. |
Plugins marked "Not Yet Tested" have not been benchmarked yet. We do not estimate or guess scores — if there is no measured data, there is no grade.
Note: Benchmarks measure a plugin in isolation on a clean install. Real-world impact varies based on your hosting, other plugins, and how the plugin is configured.
| Context | TTFB | Memory | Queries |
|---|---|---|---|
| Activation | +47 ms | +10 MB | +15 |
| Homepage | +9 ms | +2 MB | +15 |
| WP Admin | +13 ms | +2 MB | +8 |
Performance Analysis
Newsletters Lite is a working subscription engine, but it comes with a heavy price tag for site speed. Each page load delays noticeably, making pages feel sluggish for visitors on lower‑end hosting plans. The plugin also hogs a sizable portion of available memory, pushing sites close to resource limits when other services run on the same server. Every visit triggers a handful of extra database lookups, adding a measurable hit to database latency that can compound on high traffic sites.
Developers who need a simple, quick way to capture email sign‑ups on a standalone or low‑traffic WordPress installation may consider it, especially if the extra load is tolerable on a dedicated server or managed WordPress host with ample resources. However, if your site balances performance with user experience, or runs on a shared host where memory and query costs are already tight, this plugin will likely push your pages into a slower zone.
In short, start this plugin if you anticipate only a modest subscriber base and have server capacity to spare. Skip it if you prioritize responsive design and minimal resource use—its side effects will erode the very performance you’ll rely on to keep visitors glued to your content.
Maintenance Status
Last updated: 2026-02-03. Trusted by 2K+ active installations.
Benchmark data measured in an isolated Docker environment (WordPress 6.8, PHP 8.3, GeneratePress). See our full methodology.
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Alternatives to Newsletters
| Plugin | Speed Score | Active Installs |
|---|---|---|
| Elementor Website Builder | D+ | 10M+ |
| Classic Editor | A- | 9M+ |
| Yoast Duplicate Post | A- | 4M+ |
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