Low power, high ranked teams with a good speed lead, a dec defense and a nuker are going to be fast. So I would put in a slow, tanky, high resist team, survive their attack, rez my team and wreck em. Or I would A1 their fastest champ with Hegemon, then Arbiter boost and provoke lockout with Maulie or Umbral.
Very high power, very high ranked teams with defensive champs will be slow and resist everything. So I put in a Yoshi to increase accuracy, strip them with Serris, and wreck em. Or, if Tormin, let Dark Elhain just do her thing and wreck with every freeze.
Like I said above, if you make Speed and Resistance weighted the same, you take away my ability to assess which teams do what. How do I tell a fast Siphi from a high resistance Siphi if their power is both 60k? The answer is, I don't.
What you are asking for would make arena more difficult, at least for people who have worked to learn the different arena strats and team compositions, and how to combat them with our own team changes.
No if another team fasten then your, you wont control the battle, you talking about Hegemon, ifff cant turn can do nothing. What happen if the enemy team has too, but faster ? Which skill you will use ? Madame Serris strip with A1 ? LOL
Every team have counter, and the opponents have advantages, because they see enemy teams and known which heroes (team compositions) need to move to battles for win. Thats why some second team working, but today first mostly and dominated attribute is the speed. Enough to see the platinum league. 99 percent top players playing with speed teams.