This is not an issue with Powerpoint or WPS office and animated text is even worse. I do not want to leave Libreoffice, but I may have to if this issue is not fixed. I have tried every combination of the hardware acceleration options to no avail.
Did you try to disable the hardware acceleration (Go to Tools/Options/View in Impress)?
For me, under Windows 10 Impress was totally unusable on a Yoga 2 Pro, but when I disabled the HW acceleration it worked OK.