Don't worry if you don't like the new Twitter timeline. You can turn it on or off.
From your computer, click on your profile picture in the upper right-hand corner (see image below). From Settings, find your Account >> Content >> Timeline >> choose, Show Me the Best Tweets First.
How to turn Twitter's new timeline on or off on iOS and Android devices.
On your profile, tap the gear icon and select Settings>>Account>>Time line>>Timeline personalization>>Show me the best Tweets first. Tap that to turn it off.
Tap the three dots icon in the upper right>>Settings>>Timeline>>Show me the best Tweets first. Uncheck the box.