huge mouse pointer on raspberry pi 4

Just started using TV on a laptop, android mobile, rasperry pi 3b and a new raspberry 4. Everything is fine but on the raspberry pi 4 the cursor displayed on my Android phone is huge. Its only really useable if I zoom right in, otherwise the mouse cursor is too huge! All settings seem to be the same as for the raspberry 3b where the cursor appears fine. Screen res/dpi is the same for both.

Any ideas?