That's a new one. I have never experienced this issue on Mavericks. And I spend at least 10 hours a day using my Macbook with the Magic Mouse. I definitely had lag/delay on Yosemite but never on Mavericks.
I don't know if it does but having to resort to a 3rd party dongle to use a product made by Apple spending even more money than what the Magic Mouse already costs it's ridiculous.
Obviously not attacking your idea/workaround but Apple's lack of interest on fixing this or, at least, acknowledging it.
Some new tests.
Yesterday I have disabled Handoff function on 10.10.2 then, I have rebooted.
I haven't experienced cursor lags anymore.
I will continue these tests this week-end.
So I have two possible fixes:
- on 10.10.2, try to disable Handoff and reboot
- try 10.10.3 last public beta
- stay on Mavericks (which looks really old when you have used Yosemite for few monthes)
Very severe cursor lag on my iMAC mid 2011 since 'upgrading' to 10.10.3 This is not acceptable. RS
I have not experienced any cursor lag on my 2011 iMac running 10.10.3. My iMac is the 27" and I use a wireless mouse and trackpad. What is the configuration of your iMac? Might be an application or driver that you have installed that might be causing the issue.
If you boot into safe mode by holding down the shift key while rebooting, does the cursor lag still happen?
You said wireless mouse and trackpad. This might be a stupid question since there are tons of mice but not trackpads. You're using the Magic Mouse and the Magic Trackpad, right?
It can't be an issue external do OS X since, with the same settings, apps, environment, router and Magic Mouse the issue exists on Yosemite and not on Mavericks. Now it seems it's affecting people who didn't have the issue on 10.10.2 and lower and have it on 10.10.3.