Very bad performance. Help :( #3476
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Hello, unfortunately my app has a very bad performance both on iOS and Android. The web version is very fast and powerful. I do not use any frameworks. What kind of tips could you give me? Should I include ionic locally or by the CDN? |
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Replies: 3 comments 9 replies
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Hey there! There's not a lot of information to go off of from this. Can you please provide more details? "Bad performance" is pretty vague. |
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As I already mentioned before, I do not use any frameworks, so I use @ionic/core. I've checked the devtools, but it is very very fast on web. Actually, I cannot give a sample project, I'm sorry :( |
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Check the devtools when the app is running on the device. |
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What do you need more? That is just the app loading (which is fast). On Android everything is very slow. |
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Can't say for sure. This is very open-ended, and without having the project to inspect and look at myself, I can't say for sure what the issue is. Though, capacitor is probably not the culprit. I would suspect you need to look over your app while running on your android device I just published this video to show how to connect when it is deployed to a real device. |
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@mhartington Thanks for creating the video. I've sent you an invitation for my private repository. Is it possible for you to look over it? Thanks 😊 |
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Ok, without going into tooo much detail, as there is a lot... here's what I got.
Your app is currently preloading just about everything when it doesn't need to. This could cause delays in start times and could be a bottle neck on lower end devices.
You're including fast click in your app, when you do not need to. Modern browser do not have a click delay, making fast-click not needed. In your video gestures and other delays in clicks/drags could just be related to fast click. Remove it.
You're mixing jquery into web component classes, which you shouldn't do IMO. Honestly, you probably don't need jquery as most modern browser run es6, which is more than capable these days. If you're seeing good performance on the desktop, it's not going to guarantee that the app will be performant on a real device. I honestly would suggest reworking your app to either use a framework like react or angular which provides best practices out of the box. Performance issues are related to your code, not capacitor. |
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I tried without preloading and the performance is slower. Thanks for your help. |
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My twitter is mine. I simply stated something that could have been about anything. Either way, I deleted it. |
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You have mentioned the performance problems appear only on Android and not on iOS? I am just wondering how many different Android devices you have used to test the performance and what Android versions? |
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Ok, without going into tooo much detail, as there is a lot... here's what I got.
Your app is currently preloading just about everything when it doesn't need to. This could cause delays in start times and could be a bottle neck on lower end devices.
You're including fast click in your app, when you do not need to. Modern browser do not have a click delay, making fast-click not needed. In your video gestures and other delays in clicks/drags could just be related to fast click. Remove it.
You're mixing jquery into web component classes, which you shouldn't do IMO. Honestly, you probably don't need jquery as most mod…