ScreenShake and blur problems that changes computer to computer!

We are using ScreenShake for hit feelings, ScreenShake and blur is works well for 70% of people but its weird for 30%

The problem:

and in this 30% of people some of same skill shaders are looks different, broken too..
when you are dashing in game there is 0.5 seconds blur but in this 30% of people the 0.5 seconds blur is more like 2 seconds. And on some of skills there is like some effects for 1-2 secs but on their screen they are like 5-6 secs.

Any idea how to fix?

CameraShake and Blur Script:

Code (CSharp):

1. void LateUpdate()
2.     {
3.         if (ShakeTime > 0)
4.         {
5.             transform.localPosition += Random.insideUnitSphere * ShakeAmount * (ShakeTime / _lastShakeTime);
6.  
7.             ShakeTime -= Time.deltaTime;
8.         }
9.  
10.         if (_blurTime > Time.time)
11.         {
12.             if (_blur.enabled == false)
13.                 _blur.enabled = true;
14.  
15.             _blur.blurSize = Mathf.Lerp(_blur.blurSize, _desiredBlur, Time.deltaTime * 10.0f);
16.         }
17.         else
18.         {
19.             if (_blur.enabled == true)
20.                 _blur.enabled = false;
21.  
22.             _blur.blurSize = Mathf.Lerp(_blur.blurSize, 0, Time.deltaTime * 10.0f);
23.         }
24.     }

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The PC Specs that works well:

Tester 1 -
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The PC Specs that works weird (PROBLEM):

Tester 1 -
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Tester 2 -

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fixed, its because of computer language and Parse function.
Parse accepts "," in Turkish and accepts "." in English.
so 2,5 degree is converted to 25 in English