MacBook6.1 plays video in Safari up to 1080p 50fps. 60fps is already too much. Locally can play videos and FullHD 60fps, even FullHD HEVС 24fps. This is a workable machine. Depends on the video player. (I use IINA and VLC for MKV and QuickTime for MP4.) In the Chrome browser, it is possible to install the x264ify extension and enable into it "block 60 fps video", then all the pages will be 30 fps. Or always set the default to 720p - then the browsers will always have video smoothly. Especially for the resolution of the Macbook display 1080p is not necessary.
In the meantime, I updated 10.14.3 to 10.14.4 Beta 6, and had to face additional problems. But now, mainly thanks to the people from this forum, these problems have been resolved and I can use 10.14.4 just as well as before it was at 10.14.3
Since there is a system of snapshots at APPS, now you can make a snapshot, update the OS, and if you don’t like something, go to Recover and restore your system as it was before the upgrade in ten seconds. I have already used it many times, and everything works fine. Thanks to snapshots, I was able to test updates over and over until I could do everything. By the way, I have a snapshot from High Sierra, who made the system during the upgrade to Mojave. So in ten seconds I can roll back to HS. And all my settings and files will be like then, before updating. It is very cool.
Making snapshots is very simple. In the terminal enter the command
it usually takes seconds. the system before updating can do snapshot without warning about it. And if you break something in the system during the upgrade, you can easily return to the system before the upgrade. If you know about snapshots, of course. Listing of snapshots in the terminal can be obtained with the command
Code:
tmutil listlocalsnapshots /
To restore the system to the state when the snapshot is done, you need to enter Recovery or boot from the installation flash drive, select a recovery from the Time Machine, choose a source partition with your operating system. The list will contain all your snapshots, choose which one you need and after a short time get your system back. I have 40GB of data on the SSD recovered in ten seconds. Then reboot and everything is as if you are back from the future (and lost all this time)
Sorry for my English
best regards