CPU Temperature when browsing with Brave

Hello everyone,
I’m actually using Brave 1.3.115 on linux Mint 19.1 and I’ve noticed that Brave seems to warm a little bit more the CPU than Firefox.
The temperature is always higher than when using Firefox and so the fan never stop working which is a bit annoying in addition to reduce my battery life. That’s because of the fan never stop working that I’ve noticed that.
I’m still working on getting clear data evidences but is there anyone else who have noticed the same issue?

Thanks for your answer