Glass protection always causes touch issues in phones and watches, I was using one on my watch and it was also having the same issue. So I changed it to a film screen guard from Gadgetshieldz which is good with touch response and is also good for scratch protection!
Just strap it on and stop ****ing about. If you're going to use the device in harsh conditions wear & tear is a natural factor of use simple as that...
All good. I have a tempered glass one on mine now. I tend to thrash my arm around throughout the day at work (IT tech.) and I have scratched the screens on my stainless steel and edition watches.
Only problem I've experienced with the Ultra and tempered glass is the intermittent touch issue I never experienced with prior Apple Watches I used tempered glass on.