Slow pages lose visitors. We make them fast.
from $1,000
Heavy images, too many scripts and pages that load everything at once. We measure what is slow, fix the biggest causes first, and show you the before and after.
- 60+ projects shipped
- 50+ apps rescued
- Fixed price before we start
- You own everything
Our clients have raised from Techstars and 500 Startups, closed a Series A, and run marketplaces doing $30k+ a month.
- 60+
- projects shipped
- 50+
- apps rescued
- 90%
- of clients come back
- 3 to 6
- weeks to launch
We've fixed this before
AutoFox
AI-powered vehicle imagery platform for dealerships. Upload photos, remove backgrounds, generate studio-quality visuals.
Page load times dropped from 8 seconds to under 2. Dealers produce visuals in under 5 minutes per vehicle. 25% improvement in inventory turnover.
Bubble.io, Replicate API, AWS S3, Imgix, 4 weeks, 1 developer
More apps we fixed and shipped.
Real apps we fixed, finished or built. Each case study shows the problem, the fix and the result.
Founders who handed it over, in their own words.
What this is costing you
Every second loses visitors
On a phone, people leave a page that takes more than a few seconds. They don't come back.
Google ranks slow pages lower
Speed is part of how search engines decide who shows up first.
Ads that pay for bounces
If you run ads, a slow landing page wastes most of the budget.
Why it usually happens
- Large images that were never resized or compressed
- Too many scripts loading before the page can show
- Database queries (for example in Supabase or Firebase) fetching far more than the page needs
- Everything loading at once instead of when it's needed
- No caching on the hosting
Which one it is on your site is the first thing we find out. Send us your report.
What it costs
Every project is a fixed price agreed in writing before we start, with half up front and half at launch. Not sure which fits? The call is free and you leave with a recommendation and a number.
Speed fix
Pages that load in under two seconds on a phone.
$1,000
fixed price, confirmed after we see your report
3 to 5 days
- Before-and-after measurements on a phone connection
- Images resized, compressed and lazy-loaded
- Scripts and fonts trimmed and deferred
- Caching set up on your hosting
- A clean LaunchProof re-scan
Not sure it's only this?
Start with a developer reading your code. You get a verdict and a fixed price for everything it finds.
$500
code health check
3 days
- Code quality and structure rated
- Top 10 risks, ranked
- Fix, finish or rebuild: a clear verdict
Every price includes a fixed quote, weekly staging links, a documented handover and full ownership.
What you'll have at the end
- Before-and-after measurements on a phone connection
- The biggest causes of slowness removed
- Images, scripts and data loading only when needed
- A clean LaunchProof re-scan
Why JetBuild Studio for this
We've done it before, measurably
AutoFox's pages went from 8 seconds to under 2.
We fix causes, not scores
Real load time for real visitors, not just a better Lighthouse number.
Database-aware
Most slow AI-built apps are slow in the database, not the page. We look there too.
Why not just keep prompting, or hire a freelancer?
| Keep prompting the AI tool | A freelancer | JetBuild Studio | |
|---|---|---|---|
| Knows what's wrong | Guesses from your description | Starts from scratch | Starts from your LaunchProof report |
| Price | Credits, then more credits | Hourly, open-ended | Fixed before we start |
| Checks its own work | No | Sometimes | Clean re-scan as proof |
| Knows AI-built apps | It built them | Varies | 50+ rescued |
| You own everything | Yes | Usually | Always |
Your report found more than this?
Send the whole report and we price everything together.
- Security fixesLeaked keys, open databases, exposed files and unsafe code, closed.from $1,5003 to 5 days
- Design and mobile revampA site that looks trustworthy and works on every phone.from $2,0001 to 2 weeks
- Launch-readyFound on Google, shared with a proper preview, free of builder leftovers.from $2,0001 week
- Email that reaches the inboxSign-ups, resets and receipts that land in the inbox, not spam.from $4001 to 2 days
- Privacy and consentConsent and cookies set up the way regulators and buyers expect.from $7502 to 4 days
- Server and domain hardeningThe protections security questionnaires check first.from $6001 to 3 days
- Finish the appWhen the AI tool keeps breaking things, a developer takes it from here.from $3,0002 to 3 weeks
Watch us build. Hours of it.
Draftbit, the React Native platform, had Douglas record their official app-build series. The full-stack builds below are exactly how your project gets made.
3 hruncut
1 hruncut
3:56:28uncut
One senior developer, not an agency relay.
When you work with JetBuild you talk to the person writing the code. No account managers, no handoffs, no telephone game between you and the build. That's why fixed prices are possible, and why 90% of clients come back.
Douglas Maringa, JetBuild Studio
How it works
- 1
Send your report
Use the form below. Your LaunchProof report comes with it, so we already know what's wrong.
- 2
Fixed price in 24 hours
We look at the report and your site and reply with a fixed price and a start date. No call required.
- 3
We fix it
Read-only access until you approve. You see every change on a staging link before it goes live.
- 4
Re-scan as proof
We run LaunchProof again and send you the clean result, plus a short record of what changed.
How every project runs
Fixed price before we start
You know the full number upfront. Never hourly surprises.
Weekly staging links
You click through the real build yourself. No curated demos.
Documented handover
Any future developer can pick your project up.
You own everything
Code, data, accounts and infrastructure are yours at the end.
Fast, reliable, and actually understands Bubble at a deep level.
“JetBuild delivered exactly what we scoped, on time, with zero hand-holding needed. They understand Bubble at a production level, not just getting things to work, but building them properly.”
Brian Luerssen, Founder at DraftBit
Rescued our app after our first developer disappeared.
“Our first developer ghosted us halfway through the build. JetBuild picked up the project, restructured the database, and launched it in under 3 weeks. Should have started with them.”
Rachel Simmons, Founder at PivotOps
Built our entire booking system and payment flow from scratch.
“We needed a booking platform with Stripe payouts and role-based dashboards. JetBuild scoped it clearly, built it fast, and it worked on day one. No back and forth, no surprises.”
Marcus Webb, Co-Founder at GreenRoute Logistics
“Fixed what our previous developer couldn't finish.”
Questions founders ask first
It depends on what is slowing it down; the report tells us most of it. For AutoFox we cut page load from 8 seconds to under 2.
Because the LaunchProof report has already done the diagnosis. We know exactly what to fix, so a job that would normally start with a week of discovery starts on day one.
We tell you before doing anything extra, with a price. The fixed price you agreed never changes without your yes.
Lovable, Bolt, Base44, Replit, v0, Cursor and Claude Code output, Bubble, Supabase and Firebase, plain React and Next.js, and React Native.
Always. Everything stays in your accounts and your repository.
Not sure which one you need?
Book a free 20-minute call and I'll tell you straight what your project needs, including if it doesn't need me.
Book a free callNo pressure, no jargon, just a plan and a price.
Douglas Maringa, JetBuild Studio