devtrackers.gg
This is usually indicative of packet loss.
Your jump event arrives on the server late, and it jumps at a different time than you did on your client, causing you to visually "pop" into the adjusted server location.
I would say check your local internet, but sounds like you are good there.
Depending where you live and on what ISP you have, it might be out of your direct control. We as Riot are still negotiating with some ISPs to fix their routing paths to improve ya'lls experience. As an immediate mitigation, I might suggest a VPN to alternate major city, which has more direct routing to game servers (some trial and error on your part would be required to find a good one).
- David