Force login https and tracking on http

I want force login using HTTPS for security but its ok to track stats on HTTP

How do i tell piwik to force https ? Is there any performance issue tracking data on HTTPS Vs HTTP ?

please search before posting new topics How to - Analytics Platform - Matomo

I went through this document but i had question, This setting only effect on login not on tracking right? I just want to secure login thats my goal, Its OK if tracking work on http.

yes only the analytics side, not tracking

That is what i need, Thanks a lot.