A ton of extremely useful, actionable feedback that directly and significantly improved our First Meaningful Paint, Time to Interactive, [and] Speed Index

— Cihat Imamoglu, Senior Software Engineer @ Fat Llama

Let’s make you fast 🚀

Audit 🔬

What: we’ll analyze the site, identify all performance issues, and compose a document with potential op­ti­mi­za­tions.

Great when: you have a team that wants to learn a lot about their website performance, and that is ready to implement all optimizations themselves.

Want an example? See this public Notion case study.

Optimization 🛠

What: we’ll join your project, roll up our sleeves, find all performance bottlenecks, and apply precise optimizations – all by ourselves.

Great when: you don’t want to distract the team from delivering business functionality, and you want to make sure all quirks and implementation nuances are considered.

Open Source 💛

Are you a non-commercial open-source project? Our work wouldn’t be possible without open-source tools. Reach out, and, if we have capacity, we’ll be glad to help for free.

Something else 🎁

Want something custom? We’ll be glad to chat. Reach us, and let’s figure out how we can help you.

Chat with us




We worked with Google on educating developers about web performance. This targets the long-term goal of making the web faster.

This is some of the highest quality tutorial style documentation on webpack I’ve come across

Framer is a web-based tool for interactive interface design – one of the hottest ones, today.

react performance
build performance
core web vitals

We worked with Framer to perfect their user experience – by making user interactions smoother and app loading faster.

By working together, we reduced Speed Index and First CPU Idle of Framer Web by 40-45%. We also set up tooling around runtime perf – to help Framer keep & maintain achieved results in the future.

We’ve been very satisfied by working with Ivan! Ivan helped us to improve loading performance, runtime performance, and tooling around it. The quality of his work, approach, documentation, etc. has been outstanding.

Castor is a tech platform that makes clinical trials easier.

react performance
core web vitals

We made Castor’s React design system load and execute faster.

In just a couple weeks, Ivan significantly improved runtime performance and tree shaking of our key components. One of our products’ bundle got 3 times smaller – with 10× less JS needed for the initial load.

Appsmith is a low-code platform for building internal apps.

react performance
core web vitals

With Appsmith, we did not one but three React rendering performance audits. This helped us to focus on different aspects of app’s UI speed. With audit recommendations implemented, the app got 1.9…2.8× faster across multiple user interactions.

Common is a modern coliving rental company. They pride themselves on the design of their housing.

core web vitals

Common wanted to improve their marketing ROI – and reached to us to help make their website faster. We jumped in and improved the PageSpeed Insights score from 39 to 75.

Working with Ivan was an absolute joy. He reliably produces world-class work, communicates effectively and often, and is always willing to share his deep expertise in application performance optimization.

Fat Llama is an e-commerce service that helps people borrow things (cameras, cars, games, tech, anything) from other people.

core web vitals

Fat Llama had issues with page loading performance. They successfully improved a lot of things themselves, but reached to us before finishing the optimization.

We helped Fat Llama to find low-hanging (and not so low-hanging) fruits that went unnoticed – and improve performance metrics even further.

Ivan gave a ton of extremely useful, actionable feedback that directly improved our First Meaningful Paint, Time to Interactive, Speed Index, First CPU Idle metrics significantly. Also, he helped with some bundle size optimization too.

Interaction with Ivan is dense in terms of knowledge transfer, and I guarantee you that you will learn a lot of new things. On top of all these, he’s a super smooth person to work with. All in all, I cannot recommend Ivan enough!

About us

PerfPerfPerf is ran by Ivan Akulov, a Google Developer Expert, an international speaker, and a web performance consultant.

Interested? We’d be glad to help. Drop us an email, and Ivan or Chris will get back to you in 24 hours.

PerfPerfPerf · 2018–2021🖤