Matomo does most of the job

Matomo helps me eliminate the slow performance of Google Tag and Analytics, while it does most of the job, it also has some issues.
1- The backend is very CPU demanding sometimes. Checking my server resources while using Matomo shows high CPU usage.
2- Matomo registers my activity(webmaster) in the website. I don’t want this since it could alter the statistics very badly. It should be easy to exclude my activity, as Im the only user in the world logged in as admin, LOL.(I already set up a filter for this but its silly that this happens by default)
3- Matomo can detect how much time one person has spent on the site. You can check that in the Visitors log and the Real Time tabs. But if you go to the Pages tab, the average time is always way lower. Even zero. This is because Matomo would set the time to 0:00 if the person closes the tab or the window without going somewhere else(bounce rate). To resolve this, I installed a pop-up that forces the visitor to click on a button to close it, but Matomo won’t consider that click an “action”.
4- Matomo Events are confusing to set up. Matomo should have events like scrolling, zooming, clicking, and others done by default. But instead of that, it allows us to set up manually in the most unfriendly config panel named TAG MANAGER.
5- Goals: The goal manager is weird when it comes to “timed goals”. I set up a goal where if the visitor stays more than 2 minutes on the site, it should be marked as “2-minute Goal”. This goal is shown only if the visitor goes to another website. Bouncing visitors are ignored by goals.