We have noticed an increase in the LCP records on our apps and also heard the same from other Partners.
Has there been any change to how LCP is recorded around June 11th-12th-13th?
You can see the pattern across multiple apps in the attached screenshots
Hi @Zak
Are these all your apps? Did you make any recent chages?
Two are our apps and two are apps from another Partner that noticed a similar issue.
I have also posted on the Shopify Partners #appdev Slack channel and more people have noticed the same thing.
We have made changes on one of the apps that could possibly cause a change in LCP, but none on the other apps that would justify a change in the trend like the one seen in the charts.
I’m not aware of any changes we would have made that would trigger this change.
We also noticed a dramatic increase in our app’s LCP numbers starting at around the same time (June 13). We did not deploy any releases or make any changes in June before the 24th. We just got a warning today that our Built for Shopify status is now at risk.
We’ve also noticed this across our three apps, from roughly the same date (13th June)
I have a similar problem
It is possible that the problem is not even in LSP metric.
I noticed that creating a session can take a significant amount of time, especially if it is an app installation. The installation process (registering webhooks, etc.) and creating a session can take up to 1.5 seconds.
At the same time, the ping to admin.shopify.com on my server is around 1 ms
Hy folks,
Thanks for sharing these examples - I’ll connect with the relevant teams on this. Are there any common traits across these apps, eg: all using the Remix template?
Remix template
Packages:
"@prisma/client": "^6.2.1",
"@remix-run/dev": "^2.11.2",
"@remix-run/node": "^2.11.2",
"@remix-run/react": "^2.11.2",
"@remix-run/serve": "^2.11.2",
"@shopify/app-bridge-react": "^4.1.10",
"@shopify/cli": "^3.81.2",
"@shopify/polaris": "^13.9.5",
"@shopify/polaris-icons": "^9.3.0",
"@shopify/shopify-api": "^11.13.0",
"@shopify/shopify-app-remix": "^3.8.3",
"@shopify/shopify-app-session-storage-prisma": "^6.0.0",
"prisma": "^6.2.1",
"react": "^18.3.1",
"react-dom": "^18.3.1",
"vite-tsconfig-paths": "^5.0.1"
We aren’t using Remix, but it’s the latest Polaris and App Bridge 4.
We have mixed stacks, some of these use the remix template and others have a standalone server with a React client.
Hey @Liam-Shopify and team,
We are seeing this issue as well with inflating LCP around the same dates , but we are using App Bridge 4, Rails, Polaris React along with web components.
We are using:
I have the same problem.
Stack:
@shopify/app-bridge-react @ 4.2.0@shopify/polaris @ 13.9.5Same issue here - using React/Vite for our apps.
Same for me, and it’s still going on. 
@Liam-Shopify We are also seeing this exact same issue - same spike, same start time - and not resolved. Something is 100% wrong on the Shopify end. Now, our Built for Shopify is at risk too.
We are using App Bridge V4, Node Express Shopify setup.
Hey folks,
We’re continuing to track down what might be causing this - and we’ve already ruled out some possibilities. Please keep posting that you’re seeing here and I’ll be reaching out to some of you for more details.
Also experiencing the same issue with my app which is based on React/Vite. Also started to happen around 13 June.
I reverted a bunch of code, to get back to the state where LCP on average used to be 1.6 seconds, but even with the same code it is now 2.5 seconds on average.