bad scrolling using touchpad in Libre office 6.3 in Gnome

HP laptop scroll pad works fine in other applications. Useless in Libre Office with Ubuntu 18.04 with Gnome. Noticed queststion has been asked on other sites but not seen any recommendations for Libre Office.
Any help welcome!

Further info : lspci “Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01)”
sudo lshw “broadcast=yes driver=ath9k driverversion=5.2.3-050203-generic”