Hostinger is priced aggressively but their LiteSpeed configuration and hPanel limitations cause specific WordPress performance issues.
Root Cause
Hostinger uses LiteSpeed servers (faster than Apache) but their entry-tier plans severely limit PHP memory (128MB) and restrict LiteSpeed cache configurations that would actually help. Sites on their cheapest plans share resources so heavily that TTFB climbs under any real traffic.
Ordered from quickest win to most involved. Try them in sequence.
In hPanel, go to PHP Configuration and set memory_limit to 256M or 512M. If the option isn't available on your plan, add "php_value memory_limit 256M" to your .htaccess file. This alone resolves crashes on WooCommerce and Elementor-heavy sites.
Install LiteSpeed Cache plugin and enable: Full Page Cache, Object Cache (if available on your plan), Browser Cache, Image Optimization (WebP). In the CDN tab, enable Cloudflare integration if you have it. Don't run any other cache plugin alongside LiteSpeed Cache.
Hostinger's Single and Premium plans have severe resource limits. The Business plan ($3.99–5.99/mo intro) includes 256MB RAM per worker and more CPU allocation. Their Cloud plans ($9.99+/mo) provide dedicated resources. If budget allows, the Business plan is a meaningful upgrade.
In hPanel → PHP Configuration, check your PHP version. Many Hostinger accounts default to PHP 7.4 (EOL). PHP 8.1 and 8.2 execute WordPress 15–25% faster. Switch and monitor for any plugin compatibility issues — fix or replace incompatible plugins.
Hostinger auto-installs plugins like Hostinger AI Assistant, AIOSEO, and their performance tools. Each adds PHP overhead. Audit and deactivate any plugin you're not actively using. A lean plugin stack (under 10 active plugins) is critical on resource-limited plans.
If none of these work…
Hostinger's entry plans have a hard PHP memory ceiling that makes WooCommerce and complex page builders unstable. If memory errors persist after increasing limits, the plan itself cannot support your site's requirements.
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