Speed up on Thrawn

Method 1: Farm farm farm. Go with a crit chance set and a speed set, boost him as fast as possible. Can also do a health set instead of crit chance.

Method 2: if able, save ship or regular credits and buy gold or purple mods already showing speed from the mod store. (This is a huge investment of resources that may not pay off though so be careful)

Speed mods and mods with speed secondaries. Give him an arrow with a speed primary.

Better mods... Use the filter feature and find your highest speed secondaries...even if they dont match, if you need speed its worth it. If you have a speed set with good speed secondaries, thats ideal, but you might come out ahead with other mods that have higher speed secondaries.

Beyond that, just start buying up every 5 dot mod with +5 speed level them up and cross your fingers for double digit speed. Personally I only buy purple and gold.

What would be the ideal speed for thrawn? I use him in arena, but he sometimes is too slow to even take a turn before he's killed.

Depends on the teams around you. Ok speed is normal +50-75, decent would be +75-100, great is +100 or higher.

You'll get some high level guys saying +130-150 but that's ludicrous and requires exceptional luck or tons of resources on slicing (and more luck).

Most people want Thrawn fastest, to either fracture or swap TM to the toon you actually want going first. So, as fast as possible.

I use him with cls, r2, chewie, and han so he's relatively slow...

It also depends where you're using him. In Pit and HAAT you don't want him too fast as it means fracture ends sooner. Slower is actually better, particularly in Pit.

@Vendi1983

I use him in Arena so I need him fast enough to fracture before he's stunned or cooldown increased

Then yes. Absolute best speed on him. (Depending on the team). Your case you want him ludicrously fast.