The ISP is able to see the traffic and puts on limitations to the internet line.

Traffic shaping by your isp is a usual thing to do if too many connections are

detected to the same ip/url address hence some users from the same isp don't

Get any traffic shaping, if too many users using the same isp are connecting

to the same ip/url at the same time. Then the isp can! Traffic shape.

And in some cases will block the access.

Hence having a vpn does help but you need to keep changing the vpn

locations often, the isp locator does keep a record of the vpn servers location