Outdoor Security Camera Latency Issues

I have an Asus Zen Wifi 6 router and gigabit fiber. I have tried numerous wireless security cameras rated highly for low latency and yet on my system it takes at times up to 15-30 seconds to get an alert and then obtain a live view. I just returned Simplisafe outdoor camera because it was unreliable. At times it took 4 secs (which would be very acceptable) but moment later would take 15 seconds. I have 350 -450 Mbps speed at the location of the camera. Just tonight set up Arlo Pro 4 and latency was worse. Are there some settings on my router that may be causing this. Open to suggestions. Thx in advance.