Premiere Pro 2021 NOT RESPONDING on Windows 10

Hello Adobe, 

I recorded with my gopro camera 2 different videos. One with low resolution (1080) and the other one with 4k high resolution. I was able to import the videos separetaly into adobe premiere (different projects) and they are able to playback but then after a minute the video stops playing and the Adobe Premiere program shows a mesage of (NOT RESPONDING). When this happens my cpu and memory usage is not more than 60%.

The computer I have is new with all updates and the adobe premiere is the latest version. Why is this happening?

My PC specs:
Windows 10 Pro with latest updates
Intel Core i7-10510U CPU 1.80GHz
RAM 16GB
64-bit
Graphic Card Intel UHD Graphics 32-bits

Videos Clip specs#1 imported to adobe premiere

MP4 Video
Size: 1.89 GB
Frame width 1920
Frame Height 1080
Data Rate rate 45012kbps
Audio sample rate 48 kHz

Videos Clip specs#2 imported to adobe premiere

MP4 Video
Size: 1.10 GB
Frame width 3840
Frame Height 2160
Data Rate rate 60183kbps
Audio sample rate 48 kHz