Running Jenkins Behind Reverse Proxy and Active Directory Authentication

Question

I have a really weird requirement (Security team doesn't even want people who don't have access to see the Jenkins UI), where I want to run Jenkins behind reverse proxy (Apache) and then secure it via Active Directory Authentication.

Here is my config

LDAPCacheEntries 0
LDAPCacheTTL 5
LDAPOpCacheEntries 0
LDAPOpCacheTTL 5

<VirtualHost 0.0.0.0:80>
 ServerName localhost
 RequestHeader unset WWW-Authenticate
 ProxyPass         /  http://localhost:8080/ retry=1 acquire=3000   timeout=600 ttl=60 Keepalive=On

ProxyPassReverse  /  http://localhost:8080/
ProxyRequests     Off
ProxyPreserveHost On
AllowEncodedSlashes On

<Proxy http://localhost:8080/>
 Order deny,allow
 Allow from all
 </Proxy>

  <Location />
  AuthLDAPBindDN “testuser”
  AuthLDAPBindPassword “testpasswd”
  AuthLDAPURL "ldaps://testserver.example.com:636/ou=test,ou=users,dc=internal,dc=example,dc=com?sAMAccountName?sub?(objectClass=user)"

  AuthType Basic
  AuthName "AD/LDAP Credentials"
  AuthBasicProvider ldap
  AuthUserFile /dev/null
  require ldap-group     CN=Admin,OU=Security,OU=Groups,DC=internal,DC=example,DC=com
  </Location>

  LogLevel debug

    ErrorLog /var/log/httpd/jenkins-error_log
     CustomLog /var/log/httpd/jenkins-access_log common

Now everything looks OK, except that the page takes forever to load and sometimes I get a timeout (that's why I have the 600 sec in timeout value). So just want to confirm if there is anything wrong with my config?