The below is what worked for me to reduce CPU utilization and may work for others:
I was also getting about 90% CPU utilization on my Intel 9900KF processor while playing multiplayer on BF5 using a 2080TI GPU. What i have noticed with BF5 is that it will try to use as much CPU cores / threads as possible which i suspect leads to the higher CPU utilization.
To check how many job threads BF5 is using, the console command "Render.DrawScreenInfo 1" can be executed when in BF5 to view the total job threads being used. Initially for me it was 12 job threads.
One can specify how much job threads should be used by using the console commands "thread.processorcount" and "thread.maxprocessorcount". So what i did was to create a file called "user.cfg" within the BF5 installation folder and then added the following lines and saved.
thread.processorcount 8
thread.maxprocessorcount 8
Once i started up BF5 multiplayer again, my CPU utilization on average was about between 50% and 60%.
I also tried the value 4 for the console commands "thread.processorcount" and "thread.maxprocessorcount". My CPU utilization was then between 30% and 40%.
Please note i think the effects of using the console commands "thread.processorcount" and "thread.maxprocessorcount" will vary depending on the CPU and GPU being used.
