S5-HVS1: 10x Slower Relative Time?

[jal]

TL;DR

S5-HVS1 travel time

Summary: S5-HVS1 travel time

If S5-HVS1 is going 10 times faster than the rest of the stars of the milky way, does that mean that time is going slower than us?
How much slower is time going, 10 times?

 

[phinds]

Summary: S5-HVS1 travel time

If S5-HVS1 is going 10 times faster than the rest of the stars of the milky way, does that mean that time is going slower than us?
How much slower is time going, 10 times?

We think it's time is going slower and it thinks our time is going slower. Time dilation is symmetrical.

How much slower? Hardly any at all, but it depends on the actual value of the speed, not "10 times faster". Star travel velocity is not locally relativistic in the reference frame of other stars.