How to make All Chrome Threads Run High CPU Priority?

Question

Run normally, all Chrome processes have normal priority. The various threads represent various tabs, extensions, etc.

But, then i launch chrome with high CPU priority. I'm using:

cmd.exe /c start "" /high "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"

Then a few threads run with high priority, some Normal, and others run Low priority.

Why?

Is it possible to make all chrome sub-threads run with High priority?

Maybe i could achieve it by running chrome in single-process mode, but that's non-ideal.

Windows 10

Chrome 73.0.3683.103 (Official Build) (64-bit)

Solution

This is a partial solution. By my testing, it appears to prevent any chrome process going to "low" priority, although it doesn't prevent "Normal" priority.

Use the --disable-renderer-backgrounding chrome startup switch. https://peter.sh/experiments/chromium-command-line-switches/#disable-renderer-backgrounding

start "" /High "chrome.exe" --disable-renderer-backgrounding

i noticed immediate improvement in Chrome performance with this switch. I believe it allows inactive tabs to load with normal priority, instead of getting low priority. I have not noticed any negative impact on the active tab.