Yikes, we don't have that problem. 30 seconds is all you get to do everything on your turn. It has made our combats fast, furious, more fun, and gotten rid of the silliness you describe. We started that in 4e and loved it so much we still do it in 5e.I find that chsnge slows down combat a lot though & results in player turns constantly going like this typing on my phone simplified recap of an example:
I attack. Dies xx hit?
Yea roll damage
Yy for. You first attack
Ok you hit the ork & [$description]... . Is that your turn?
No I have more... How's he looking is he still alive, doing ok?
Do you want to spend the rest of your turn determining that?
No but how's its life? ....
Do you have any wsy of innately knowing that or is that your turn?
No does xx hit?
Yep gimme damage
You hut the bad guy and [$description]
sigh would you like to spend the rest of your turn determining that?
No I have a third attack but how's he doing?
Do you have any way of knowing that automatically without using an insight check as an action or something?
Tgen you stilldon't know this instant in the heat of battle finish your turn or ik moving on
Dies xx hit?
Yep gimme some damage.
Then repeat this cycle with that player every. single. round. whenever there are two monsters in reach or within reach of the remaining movement speed.