Skip to content
Get a quote

Lovable performance problem

Why is my Lovable app so slow?

The published site takes seconds to show anything, or it lags when several people use it, and customers notice. The places to check are the database and the page itself. Here they are in Lovable’s and web.dev’s words, with what to check first, or hand it over at a fixed price.

Rather hand it over? AI-Built App Rescue: A Lovable, Bolt or Cursor app checked end to end in 3 days, then its worst problems fixed at a fixed price.

Pay $450 for a Launch CheckAsk a question first

Full refund if Simon can’t take it on once he sees your project, or if you cancel before work starts. Refund terms.

No issues worth fixing, no charge. If the Launch Check finds nothing rated medium or higher, Simon refunds the full $450. You keep the report either way. This applies to the first 10 Launch Checks bought after October 30, 2026.

Short answer

Measure first: test the published URL with PageSpeed Insights, and aim for the main content to appear within 2.5 seconds for at least 75% of visits. If data loads slowly, ask Lovable to find and fix the slowest database queries before you pay for a bigger database. If the page itself is slow, ask Lovable for a performance audit that reports duplicate network calls and large assets without changing code, then fix the worst first. Never lazy-load the main (LCP) image.

Rather not fix it yourself? AI-Built App Rescue starts with a fixed-price Launch Check, then fixed prices for the fixes it finds.

Why the app is slow, and the fix

  1. 01

    The database queries are slow

    “Start with the notice you received, check the health of your database, and fix the queries behind the load before you resize.” Lovable, Database performance

    Lists and dashboards wait on the database. Lovable’s database performance tools point at the queries behind the load, and you can ask the agent to fix them with a prompt like the one below.

    My app feels slow. Find the slowest database queries and optimize the worst ones.

  2. 02

    The database instance is too small

    “Change it when your app is slow under load and Lovable found no slow queries to fix.” Lovable, Database performance

    If the app slows down only when traffic grows and the queries are already fixed, a larger database instance handles more load. Resize after fixing queries, not before: a larger instance costs more credits every hour the app runs, and resizing needs a Pro plan or higher.

  3. 03

    The app makes unnecessary or duplicated calls

    “Unnecessary or duplicated network and database calls.” Lovable, Debugging prompts

    A slow app can be making the same network or database calls more than once. Ask Lovable for a performance audit that reports bottlenecks without changing code, then fix the worst first.

  4. 04

    Large images or bundles

    “Large assets or bundles that slow down loading.” Lovable, Debugging prompts

    Large files slow the first load. Ask Lovable’s performance audit which assets and bundles are largest, then shrink or remove the biggest first.

  5. 05

    The main image loads last

    “Never lazy-load your LCP image, as that will always lead to unnecessary resource load delay, and will have a negative impact on LCP.” web.dev, Optimize Largest Contentful Paint

    If the biggest image at the top of the page is its Largest Contentful Paint element, don’t lazy-load it, and set fetchpriority="high" on it.

    <img src="/hero.webp" fetchpriority="high" alt="Product screenshot">

  6. 06

    Know what fast means

    “To provide a good user experience, sites should strive to have an LCP of 2.5 seconds or less for at least 75% of page visits.” web.dev, Optimize Largest Contentful Paint

    Largest Contentful Paint is the time until the main content shows. Test the published URL, not the preview; PageSpeed Insights shows mobile results.

Checked against the vendor’s docs on : Lovable docs: Database performance; Lovable docs: Debugging prompts; web.dev: Optimize Largest Contentful Paint.

Rather hand it over?

Fixed scope, fixed price, paid upfront. The work happens in writing; no call needed.

“Very responsive, attentive to fixing bugs, and completed the project as needed! Thank you!”
A buyer in the United States, July 2022. Shopify on Fiverr
All 127 Fiverr reviews

Related: Supabase app slow · Lovable keeps breaking and the AI can’t fix it · Lovable app blank after publishing · Move Lovable Cloud to your own Supabase

Questions

More on this error

Should I upgrade the database first?

No. Lovable’s docs say to fix the queries behind the load before you resize, and to change the instance size when the app is slow under load and no slow queries are left to fix.

Why doesn’t Lovable show any slow queries yet?

Lovable builds query statistics as the app handles real traffic, so check again after the published app has had visitors. Measure the published URL meanwhile, then fix the slowest part first.

Can you fix it for me?

If one bug is the whole problem, the App Fix Ticket covers it: a written diagnosis first, then the fix. If the app has more going on, the Launch Check is a written check of the whole app. Each issue found is rated critical, high, medium or low, with where it is and how it was confirmed. No issues worth fixing, no charge. If the Launch Check finds nothing rated medium or higher, Simon refunds the full $450. You keep the report either way. This applies to the first 10 Launch Checks bought after October 30, 2026.

A different error?

Describe it and get a written quote

Send the error and what you were doing. You get a written scope, a fixed price and a timeline; Simon replies by email, usually within one business day.

Describe your problem All fixes