Respawn are aware of the issues, and have been actively working to fix them
Please see the Patch Notes thread for details
https://www.reddit.com/r/apexlegends/comments/aq8bh7/apex_legends_2132019_preseason_patch_notes_01/
Yes. Totally get everyone's frustration with that response and apologize. We care very much about stability and performance and we're working hard to identify issues, repro, and address. We lots of work still to do and many more patches are coming. Appreciate everyone's patience.