Determine server change from client change?

Hi.

I have filtering enabled and I want to change the position of a server Part locally on a client, but I want to keep the actual position (server) referenced on the client so I can do computations with both numbers.

My best solution was to create a separate part on the client which has the local position so that I can keep the server part's position the same, but I find it to be a janky fix and remote events will cause lag.