Performance issue with SystemWebview after update

[M86xKC]

Bromite version

Version: > v72.0.3626.119
Arch: arm64
Android version: 9.0
Device model: Samsung Galaxy J7 Pro 2016

Is the bug reproducible with latest version?

Yes.

Can the bug be reproduced with corresponding Chromium version?

I think the performance issue is related to the additions that were in the Bromite v72.0.3626.120 release.

• add support for resource type in adblock engine (fixes Add support of advanced blocking rules #115)
• adblock engine speed optimizations
• use adblock engine also in SystemWebView
• add back uBlock Origin and EasyList filters
• added Fanboy's Annoyance List

Is the bug a crash?

No

Describe the bug

Recently I updated my SystemWebview from an older version to the most recent one. And immediately I notice a huge performance issue (lag) in all applications dependent on Webview. After testing different versions I found the issues appeared starting from Bromite v72.0.3626.120 till the most recent one.

I think It is more obvious to noticed on a lower-end (mid-range device), because of the low processing power.

To Reproduce

1. Update to any version > v72.0.3626.119
2. the lag happens when loading the page & scrolling

Expected behavior

Normal behavior (no lag)

Screenshots

I wanted to record the screen, but I found it was not clear from the video because of the low quality of the video recording 10fps ¯_(ツ)_/¯

[csagan5]

You have to test with the Chromium WebView, this might be related to #353 which happens also without adblock.

[M86xKC]

I thing this is not related to the other issue. I have no problem in the regular Bromite app, but rather in apps that depend on SystemWebView.

I have tried this SystemWebView and didn't have any problems (lag).

[Adrymate9]

hello, the version I try to use is v76.0.3809.129. ARM64. phone Huawei mate 9 with android 8.0. It really works very badly, freezing at all times when scrolling through the web pages.

I tried what they follow, using v72.0.3626.120I had no luck is still missing in the same way.

Hopefully they can fix it in the next update. I love this browser.

[M86xKC]

@Adrymate9

Try v72.0.3626.119 and see if the issue still persists ?

And btw how did you change the systemwebview on unlocked bootloader, just curious 😉

[Adrymate9]

@M86xKC Now I am going to try this version that I suggest and come back to comment on the experience

Regarding systemwebview, I'm really new to this and I don't understand what you mean or how I should proceed with this. I would appreciate your help on this topic.

[Adrymate9]

@M86xKC Effectively in version 72.0.3626.129 I also have the same problem.

[csagan5]

I have tried this SystemWebView and didn't have any problems (lag).

You need to test with the Chromium SystemWebview provided by this project.

[Adrymate9]

@csagan5 I have installed systemwebview x64 that proposes bromite. But once downloaded it does not appear in the corresponding section in the developer settings of my phone.

I don't know how to make it work above default systemwebview Help.

[M86xKC]

You need to test with the Chromium SystemWebview provided by this project.

How can I get this ?

[csagan5]

How can I get this ?

https://www.bromite.org/chromium for latest version

[M86xKC]

No issues what so ever.
I tried the latest version btw (76.0.3809.129)

[M86xKC]

https://github.com/bromite/bromite/wiki/Installing-SystemWebView

[csagan5]

No issues what so ever.
I tried the latest version btw (76.0.3809.129)

We can conclude it's adblock-related; the issue might change radically with the next release (v77) of Bromite SystemWebView as the NetworkService must be used; you will have to test with that one once it's released.

However, even if the issue is acknowledged, we cannot fix it if it's simply caused by the AdBlocker.