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image optimisation

Azzurri Group: Boosting site speed with image optimisation

[ Client ] Azzurri Group: Zizzi’s, ASK Italian, Coco di Mama
[ Platform ] WordPress
[ Service ] Food & Drink


Always looking for ways to improve their customer’s experience, Azzurri Group came to Propeller wanting to boost their site speed. We knew just the ticket to get their pages up to speed: image optimisation.

Propeller enabled all images to automatically upload into the optimum image format for the web.  This one-off update to the site not only changed the file types of the existing images, but has future-proofed future image uploads, too. 

Propeller elevated Azzurri Group’s pages with an average increase for desktop performance of 26% across their four websites. Read on to learn how Propeller boosted Azzurri Group’s site speed in our case study…

Our approach

We chose image optimisation as our strategy as we know it has the potential to improve loading speed time across the board and improve overall Google Core Web Vitals scores.

Image optimisation involves maintaining high-quality images and refining them in the best format, size, and resolution to improve site speed.

Propeller has created a solution to add into current WordPress solutions to automatically optimise any image which is uploaded (JPEG, PNG etc) into the CMS and serve the correct modern image format in each browser:

  • Automatic serving. No need to re-upload any images
  • CMS users require no extra training and can continue to upload any image format
  • High compression of images will decrease page load time and give a better customer experience
  • Improved Core Vitals score

We focussed on optimising the following sites: 


ASK Italian

Coco di Mama

Azzurri Group


We collected the following data through the Google Page Speed Insights tool:

  • Across all Azzurri sites, the image optimisation work has improved the performance score on average by 20% on Mobile and 26% on Desktop.

By Propeller: A digital design agency that builds a bigger picture

Being relentless in our attention to detail is what we do. Propeller isn’t just a food & drink digital marketing agency that relies on pretty pictures or crafted copy. Instead, we look holistically at your brand, business and your objectives to create a bespoke digital experience and website design for property businesses.


We keep you, and our senior designers, in the loop at every stage of the design process. You’re always able to feedback and review design elements in real time and with interactive Adobe XD links.


Working with your design resource, we collaborate for a mobile-first approach built on wireframes that define structure and hierarchy to make the end to end journey as smooth as possible for your customers.


Ultimately, you want a web design agency that can build something beautiful that your customers will love to use. To keep the good times rolling, we’ll work to build a strong component library that helps you tell a consistent and engaging story throughout the customer journey.


Our team doesn’t necessarily just start from scratch. We audit your existing website to understand what’s working, and build around those areas to create even more conversion opportunities.


As a UX design agency we prioritise developing wireframes for your website as a foundation of design. We firmly believe that defining the functionality of every inch of the site is essential to strong UX design, and wireframes are key.


Take your users and customers on a journey that works for them and convert more sales for you. Our team seeks out the right insights and analytics to deliver the best website and wireframe structure for your business.