How to find out why websites slow down in the browser?

Question

linux

Hello. Guys, the charade is not clear, help me find the reason. Dali clean up netbook:

Acer Aspire One 751 [AOh-52Bb]

Processor
Atom series
Model Z520
Cores 1
Clock speed 1.33 GHz
Level 2 cache 512 KB
3DMark06 test 391 points
Passmark CPU Mark 248 test score(s)
SuperPI 1M test 121.7 s

there was Windows 7. It still didn’t go anywhere in the explorer, tolerably, but you open any browser and the wildest brakes begin .... videos from YouTube do not open at all, 360 resolution and it jerks that the sound that the video opens, such a feeling will be gprs internet. Decided not to fucking install Linux, so that everything from scratch. As a result, the browser still has the same brakes, even worse, in the status bar you can see how it either downloads fonts, or something else at a meager speed. I looked at the temperature of the processor, everything is ok with it - https://i.imgur.com/sgaQm8F.png
I measured the speed of the Internet through the speedtestd test on the Internet - the speed is 10 mb per second.

the graph shows a screw of 100 degrees, but that is an error, it simply does not read, I checked the speed of the screw with a regular utility in Linux - 90 mb per second.

where else to dig xs, but since it is the Internet that slows down and you can see how it loads pages with a creak, individual elements on them ... maybe something is still with the network device.

Answer 1

The problem is in the browser itself. Look for a lighter, and better text. On the other hand, you can disable 3d party content, styles and scripts. the netbook was created when the sites consisted of tables and frames, and therefore cannot show modern 100500+ mb web applications on these your reacts.
There is also a possibility that the site / browser / antivirus / provider loads a lot of unnecessary things. This can be seen from the developer console in the network tab. Also, some antiviruses drive all traffic through their proxies. Also, dns often slows down due to all these providers, vpn, blocking and encryption.

Answer 2

Because the processor is dead. An SSD will improve things a bit.

Answer 3

The processor is very weak and for him this is a normal speed. I myself have a similar machine, the Internet can only be used as a last resort.

Answer 4

1. Test the connection speed through the console iperf (or stupidly through the wget/curl resource request).
2. Check disk speed and swap file size. If it's slow, try moving the swap to a fast medium or remove it altogether (+ expand the RAM).
3. Free space on the active partition - must be at least 2xRAM.
4. Disable js in browser and load any resource: compare speed. Either the percentage when processing the js code is weak, or there is not enough memory (monitor!), Or - this is a network, or - a flash royale))).

Answer 5

That's the way it should be.
Perhaps at birth, he still somehow could toss and turn when XP was on him, but now it's just rubbish.
The Palemoon browser will improve the situation, it is possible that it will be possible to use the Internet, but you should not hope too much.
You can try GMABooster, GMA OverClocking, A1CTL and SetFSB to try and overclock.
Of course, these are relevant for Windows 7 tools.
But perhaps the most reasonable thing is to throw it away and not suffer.