[valtam]

6 huge screenshots is fine. Screenshot the tab using the most cpu using the slimjet task manager. It will show which tab is hogging cpu. Right click on the slimjet tab space to select it.

[TMG1961]

[valtam]

So what would happen if you opened just 10 tabs that were all the same ie. www.google.com ? Also what extensions do you have installed? Have you googled your browser version? It may have known issues. I know this happens with Slimjet depending on builds. One build can be fine, then the next build has issues, then the following is fine again. I'll get you to test an extremely light browser I made a while ago to see if it's Slimjet that's at fault. Will send the code later.

[TMG1961]

I have ad blocker, last pass and click&clean installed
I opened 10 tabs, all of the google and basically the same thing happens, not as bad as when i opened the 12 iphone tabs but slimjet doesnt like it
Havent looked into the browser itself. Will have a look later this evening to see if there are known issues.

[valtam]

It may be an add-on. Disable all of them, then open the usual tabs. See if that's better, then add each one back to see which (if any) is the culprit. Other than that, I'm out of ideas. Keeping in mind, your CPU is no workhorse, very low end. Good luck :)

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[TMG1961]

Thanks for your help Jerry and bitsnpcs
I wil test things out later today. And i will try to keep in mind hat the cpu is no work horse :)