Ajax работает очень медленно в windows form app C# brwser

I have a windows form app in visual studios and i have web page running inside the c# browser , my web page has js and ajax , both are running fine if i run in normal browser like Internet explorer , of chrome or firefox , but when am using it inside my app its getting very slow , ajax is running really slow and functions are delayed when storing to mysql, but its instant when i check in browser. 

I have a windows form app in visual studios and i have web page running inside the c# browser , my web page has js and ajax , both are running fine if i run in normal browser like Internet explorer , of chrome or firefox , but when am using it inside my app its getting very slow , ajax is running really slow and functions are delayed when storing to mysql, but its instant when i check in browser.