Apex Legends：100% CPU Unresponsive due to usage

There are many ways to search online, but it doesn't work
CPU: i5-8400 (automatic overclocking 3.79ghz)
Graphics card: sotay 1080
Ram: 16g (Weigang 8 + 8)
Graphics driver: 461.09
As shown in Figure 11
I put the main operation on the browser (apex background) and the CPU takes up% 33
As shown in Figure 12
When I put the main operation on apex, the CPU usage will rapidly rise to% 80 (total usage% 100) in a few seconds
As shown in Figure 13
If you put the main operation on apex for about 10 seconds, it will become unresponsive