Personal choice and Skill allocation.
Windforce + Might Pride Merc while using Strafe.
You can use Harmony on switch for faster run/walk.
When using strafe, you only need to reach 95% IAS breakpoint, higher is Faith + using MS.
You use Valk (slvl 27 minimum) for summoning the best equipment and use Decoy to draw in monsters while using strafe + pierce to clear mobs... also Atmas for Amp.
Your build is built around goals you want to reach, also, if you build your bowazon correctly, you can go "toe-to-toe" with Diablo using Strafe and not running around using base point Guided Arrow, also... 1 base Magic arrow comes in handy vs pesky Phys/Light immunes etc... thus you need Knockback (WF)
Again, it is based on personal choice, also, 150 to 200 vita build will still give you enough points in Dexterity to deal decent damage, and you can also build around different damage, not just physical... Cold, lightning, Fire, maybe 1 poison dmg SC to slow regen.
So, Strafe, Freezing Arrow and Valk build (Valk being an extra Tank) ... choosing just Strafe vs MS is not realistic, you need another skill or two. You can go GA / MS and pure phys, but your vitality is reduced, so you are constantly moving around, also a little harder to do Pits... enclosed areas.
Not sure how D2r has changed, but if the Phys Sunder gives you some benefits, you may use one(1)... this means your other charms are phys oriented, however you can also deal elemental damage.
Upto you how you want to build your bowazon.
Iron frostmaiden is old, however, with D2r and their changes, maybe YOU can make it better.
D2:R