loading issue, error, making site slow

Hi,
I activated this form on my website. but it makes my website slow. when seeing in GTMetrix below are the statistics and gives error. hence deactivated this form.
please resolve the issue so that i can again activate the same.

I have taken the screen shot of errors. I can give you on email.

Headers
https://www.shinybaba.com/wp-admin/admin-ajax.php

Response Version – HTTP/2.0
access-control-allow-credentials
true
access-control-allow-origin
https://www.shinybaba.com
cache-control
no-cache, must-revalidate, max-age=0
content-encoding
gzip
content-length
31
content-type
text/html; charset=UTF-8
date
Mon, 02 Dec 2019 20:09:24 GMT
expires
Wed, 11 Jan 1984 05:00:00 GMT
referrer-policy
strict-origin-when-cross-origin
server
Apache
set-cookie
tWrHMaezTI=vHa7enAiD8; expires=Tue, 03-Dec-2019 20:09:26 GMT; Max-Age=86400; path=/
set-cookie
wKqm_WSQj=SGvBZHVMR; expires=Tue, 03-Dec-2019 20:09:26 GMT; Max-Age=86400; path=/
status
200
vary
Accept-Encoding,User-Agent
x-content-type-options
nosniff
x-frame-options
SAMEORIGIN
x-powered-by
PHP/7.1.32
x-robots-tag
noindex
Request Version – HTTP/2.0
:authority
https://www.shinybaba.com
:method
POST
:path
/wp-admin/admin-ajax.php
:scheme
https
accept
application/json, text/javascript, */*; q=0.01
accept-encoding
gzip, deflate, br
accept-language
en-US,en;q=0.9
content-length
65
content-type
application/x-www-form-urlencoded; charset=UTF-8
origin
https://www.shinybaba.com
referer
https://www.shinybaba.com/
user-agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36
x-requested-with
XMLHttpRequest

post

nonce=7d3cc0c34f&ac{“error”:1}tion=fm_reload_input&page=form_maker&form_id=8

Response
{“error”:1}

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