First, stop all docker containers with:
sudo docker container stop $(sudo docker container ls -q --filter name=inc_mainnet_*)
Next run the following which will check the disk speed:
dd if=/dev/zero of=/tmp/test1.img bs=1G count=1 oflag=dsync
The best bet is to call during their open hours and tell them you’re losing money because of the poor I/O impact. Keep in mind that depending on your phone carrier the cost could be high, if that is the case use Google Voice or another alternative as it will be a lot cheaper.
This will be a temporary fix, they will end up throttling it again later on.