Adobe form taking too much time to render using Web dynpro ABAP

Dear All,
we are rendering an Adobe form online to view employee profile, the form is hardly 100KB but it takes 5 minutes to render in the browser. I have checked the performance of abap code and there is no performance issue. the form shows downloaded 100kb ot 100kb and then I get the wait symbol for quite sometime and after a few minutes wait it renders. the form has XML based interface and ZCI layout. I have done a HTTP trace and could not trace out anything, so I suspect it is something to do at the client level.
Can anyone help me to identify what and where exaclty is the problem.
Is it with the
1. Adobe Reader ? - I have adobe X reader
2. Is it to do with any browser or Adobe reader settings?
3. Is it do with ADS?
4. Or any other compatibility issues?
Any pointers is appreciated. 5 minutes is too long to render a 100 KB form.
Thanks in Advance.
Raghavendra Prabhu

Please go through the below link, hope you may get any help...
http://www.stechno.net/sap-notes.html?view=sapnote&id=1785100
Naveen

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https://technet.microsoft.com/en-us/library/cc262485.aspx
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Please HELP ME...

Hi this is what the solution given by your link
A.1.6 Connection Timeouts Through a Stateful Firewall Affect System Performance
Problem
To improve performance the mod_oc4j component in each Oracle HTTP Server process maintains open TCP connections to the AJP port within each OC4J instance it sends requests to.
In situations where a firewall exists between OHS and OC4J, packages sent via AJP are rejected if the connections can be idle for periods in excess of the inactivity timeout of stateful firewalls.
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Solution
The OHS TCP connection must be kept "alive" to avoid firewall timeout issues. This can be accomplished using a combination of OC4J configuration parameters and Apache runtime properties.
Set the following parameters in the httpd.conf or mod_oc4j.conf configuration files. Note that the value of Oc4jConnTimeout sets the length of inactivity, in seconds, before the session is considered inactive.
Oc4jUserKeepalive on
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Also set the following AJP property at OC4J startup to enable OC4J to close AJP sockets in the event that a connection between OHS and OC4J is dropped due to a firewall timeout:
ajp.keepalive=true
For example:
java -Dajp.keepalive=true -jar oc4j.jar
Please tell me where or which file i should put the option
java -Dajp.keepalive=true -jar oc4j.jar ??????/

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Hi fiontan,
Thanks a lot for the response!!!
Yeah!! I kow it's a lotta code, but i thought it'd be more informative if the whole function was quoted.
I'm in fact using the PrintWriter to wrap the BufferedWriter but am not using the print() method.
Does it save any time by using the print() method??
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