Well, you can’t move mods on swgoh.gg, but you can see what mods you have equipped, and then you know who has a good mod that you need to put on someone else.
You say you don’t have credits, but your current mods aren’t good enough. Spend as many as you can spare on mods. Try to get a +30 speed primary arrow on each of your Phoenix. Vader, palpatine, BB-8, R2-D2, and Leia all have them, but you’ll need to take those arrows to lvl 15 to get max speed.
Try to get as much secondary speed as you can. It would be too time consuming for me to go through all of your secondaries and tell you which exact mod goes on who, but if you look at your speed secondaries https://swgoh.gg/u/freedomfrom/mods/?stat2_5=1 you can put the fastest secondaries for each shape on the character you want fastest (probably Ezra). I noticed that you have a lot of +5 speed mods at level 1. If it’s a blue mod level it to 6 to see the max speed, if it’s a green mod level it to 3 to see the max speed, if it’s a purple mod level it to 9 to see the max speed, and if it’s a gold mod level it to 12 to see the max speed. With as many speed secondaries at level 1 as you have, I’m sure you can get some +10s. Stick those mods on your arena team after you finish Thrawn.