Re: Online player count (ps4)

While a lot of Battlefield fans have moved to Battlefield V there is still a large amount of players still actively playing Battlefield 1. When you go to the server browser filter, try resetting it back to default and choose "NONE, 1-5, 6-10" in your player slot filter. Then click the server button to see the results. Sort by ping. 

If you do not see that many, try going back to the filter and add a couple more regions to your list. That should help!

We also have some basic connection troubleshooting steps below that should help improve latency for you. Power cycling your PS4 is helpful if you haven't done that in a while.

Power Cycle

1. Touch the power button on the front of the PS4 for at least 7 seconds (until the system beeps twice).
2. Turn it back on after 1 minute. Launch the game.

Basic Connection Troubleshooting

https://help.ea.com/en/help/faq/connection-troubleshooting-basic/