Application Hang When To Many Item Interact With Vortex

[bunnyEight]

I was in a survival mission with nova and vauban.

Enemies keep coming and drop item like  health and energy ball and i did not pick a lot of them so they start accumulate on the ground.

At first, we kill the enemy before they come in front of us but they did after level up.

So after 20 minutes or more, I found out that I cannot pick up anything nor change weapon.

But I still communicate with my team member.

I wait for a while but the situation keep going. Therefore, I type command /unstruck.

After the command, everything resume, for a instance.

What I can see is there are unaccountably many items interacting with vauban's ability - vortex.

Then the fps drop to something like 0.2 and the game hang quickly in a minute.

 

My computer spec is :

CPU - Intel i5-4440

Display - GTX750Ti

Ram - 16GB

 

And i use all default display setting.