parse-server: LiveQuery Server too slow in nginx reverse proxy

the LiveQuery server is with Parse Server in my express app like so : ParseServer.createLiveQueryServer(httpServer);

here is my nginx sites-available:

# HTTP - redirect all requests to HTTPS
server {
    listen 80;
    listen [::]:80 default_server ipv6only=on;
    return 301 https://$host$request_uri;
}

# HTTPS - serve HTML from /usr/share/nginx/html, proxy requests to /parse/
# through to Parse Server
server {
        listen 443;
        server_name my-domain.com;

        root /usr/share/nginx/html;
        index index.html index.htm;

        ssl on;
        # Use certificate and key provided by Let's Encrypt:
        ssl_certificate /etc/letsencrypt/live/my-domain.com/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/my-domain.com/privkey.pem;
        ssl_session_timeout 5m;
        ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
        ssl_prefer_server_ciphers on;
        ssl_ciphers 'EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH';

        # Pass requests for /parse/ to Parse Server instance at localhost:1337
        location /parse/ {
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header X-NginX-Proxy true;
                proxy_pass http://localhost:1337/parse/;
                proxy_ssl_session_reuse off;
                proxy_set_header Host $http_host;
                proxy_redirect off;

                # WebSocket support
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";
        }

        # Pass requests for /dashboard/ to Parse Server instance at localhost:4040
        location /dashboard/ {
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header X-NginX-Proxy true;
                proxy_pass http://localhost:4040/dashboard/;
                proxy_set_header Host $http_host;
                proxy_redirect off;
        }

        location / {
                try_files $uri $uri/ =404;
        }
}

so ever since i switched to https using nginx reverse proxy, the response is too slow and sometimes it wont even receive the response when i test creating objects in the dashboard.

I am planning to separate the livequery server with redis as stated in the wiki. hopefuly this will help or I can use apache for this. anyone with similar issues to this?