How to remove the high load of the browser on the percent?

Question

Browsers

After switching to Windows 10, the following problem appeared:
When loading pages in any browser, the processor is loaded at 90 - 100%, there was no such problem on Win 7. Removed and disabled the built-in flash player, the problem did not disappear. Which way to look? All drivers are installed.
General information
Operating system
Microsoft Windows 10 Pro 64-bit
CPU
Intel Core i5 3470 @ 3.20GHz 46 °C
Ivy Bridge technology 22nm
RAM
8.00GB 2-channel DDR3 @ 665MHz (9-9-9-24)
Motherboard
Gigabyte Technology Co., Ltd. H77M-D3H (Intel Core i5-3470 CPU @ 3.20GHz) 45°C
Graphics
SyncMaster ([email protected])
1279 MBNVIDIA GeForce GTX 570 (Gigabyte) 45°C
The issue was resolved by switching the power supply to "high performance".
Control panel - power supply.

Answer 1

Open the resource monitor, see which process is loading the processor.

Answer 2

It's very strange that the processor loads like this ... an obvious problem in Windows .. but ... how many extensions do you have connected to the browser? and also send a screenshot of all processes when the browser is running ... as well as a screenshot of the services (all) when running browser. Let's see what can be done. And so I can offer you my help by remotely connecting to you.

Answer 3

As a temporary solution, so that the computer can continue to be used, in the task manager, find the process that loads the processor the most - right click - Detailed - right click - Set affinity - uncheck half the cores, then this process will not be able to load all resources.
And then look for the problem. After a reboot, you will need to repeat.