WF Pro 4 : Why is it so slow? | Wordfas PRO 4 on a MacBook Retina

Forum: Wordfast support
Topic: WF Pro 4 : Why is it so slow?
Poster: Lucia Me
Post title: Wordfas PRO 4 on a MacBook Retina

Hello,
I've been using WF3 for years and now I'm starting to use the WF4. My Macbook (OS El Capitan) has 16 GB.
I like WF 4, but it is painfully slow.
Passing from one segment to the following one is slow, looking for TM concordance is slow. And sometimes it appears a popup windows "internet connection is slow", but I'm working with local TM and no reference online.

Morover, when I pass to the following segment, the cursor goes directly to the end of the segment: this means I have to go to the segment start, and this takes time.

How can I manage this?

Thanks
Lucia