How can I improve my checkout page speed?

[HenkPietersen]

Good day to you all,

Our checkout page is very slow, the maximum I achieved with Google PageSpeed Insights was 16%.
Here I did find some information why it would be so slow, but this all refers to bits of code I can't find in my code.
Probably this code is located elsewhere, and I don't have access to it.
We use the Motion theme, we do have some apps running, but according to Google PageSpeed Insights they don't slow down the checkout page.
Do you have any tips or tricks to optimize the speed for the checkout page?
A lot of clients click away now because it takes too long.
If you need more information please let us know!

Thank you in advance for your effort.

[HenkPietersen]

Yeah, https://www.weldoor.nl

[Syed_Mustafa]

If I am not wrong you are talking about this URL https://weldoor.nl/cart? 

[HenkPietersen]

I think you mean this?
https://weldoor.nl/49752146081/checkouts/c6579e86e49a82cbb382dbd6273660a1
It seems to me you know that every checkout is different?

[HenkPietersen]

I sent you an email.
I look forward to your response.

[Syed_Mustafa]

Reply Done