How to resolve Cache issue when new tab load in Angularjs Application

I have a landing page for form submission. When user submit the form it redirects to Thanks Page and Load new cache again. Its taking around 4 sec to process the API & Load Thanks page… How to resolve this and decrease time to 1 sec Max ?

i want to reduce the processing time to 1 Sec max

maybe instead of redirect you can try FlowRouter.go