Remote extremely slow after update W10

Roon Server v1.3 on Qnap 670Pro, i3, 2TB SSD in Raid0
Router Asus RT-AC66U
Gigabit network with Cat7 and Cat8 Cables
Roon Remote on laptop Asus N76VZ, i7, 256GB SSD, WiFi AC standard
Windows 10 Pro Build 16278-rs3 Insider Slow Ring

Library on Qnap server, 1767 albums, 25425 tracks in Flac and DSF
Tidal Master subscription.

Output to
Linn Majik DS
Resonessence Herus DAC with Final Audio Heaven V
Asus laptop internal speakers

After Windows 10 update Roon Remote is extremely slow. Not workable anymore. Loading a page takes about 1 minute.
It was blazing fast before…

This happened before. But after an upgrade of Roon Remote it was fast again.
What I tried up till now:
Restarted Roon
Restarted laptop
Re-installed Roon Remote
Restored from a Back-up

Sounds like this issue:

A workaround is to use the 32bit version of Roon instead of the usual 64 bit version.

OK It’s working again! Thanks