If you have a busy server in which your backups are often paused due to high load, you may want to consider addressing the underlying load issue.
Consider what load level would be considered high for your server. However, if this is not a viable option and you see log entries that show CpuWatch stoping the backups, you can adjust the threshold.
cpuwatch (Sat Jun 20 13:47:08 2020): System load is currently 10.35;
waiting for it to go down below 10.00 to continue …
CpuWatch will pause backups once the server load reaches a certain value. This value is calculated as follows:
$NUMBER_OF_CPU_CORES * 0.875
The product of this calculation is the value used by CpuWatch as the threshold. To increase this, you can add "extra CPU" counts to increase the final limit used.
To increase this value simply visit the following interface option:
WHM >> Home >> Server Configuration >> Tweak Settings
Then look for the option called: Extra CPUs for server load