Samsung Tab S Web browsing painfully slow

[AC Question]

My Samsung Galaxy Tab S is painfully slow when Internet browsing.

Wifi connection is fine, all other devices in the house are ok.

I use chrome and it keeps closing automatically too.

I have tried Firefox and Internet browser, they are also slow.

Have tried clean up, deleted all unused apps etc. No better.

Is fine when playing games, watching netflix etc, just browsing that's the problem.

Any suggestions?

Many thanks.