While it probably won't result in a noticeable difference, a 32 bit install will use slightly less RAM overall as the OS addresses it differently and you don't need to load both 32 and 64 bit libraries into memory if programs require them. Use the free -m command to see if you are running out of RAM when these stutters occur.
If you have a little to spare ...
This is a late answer, but I'll try to help in case you're still having this problem or if someone else stumbles upon this page. :) Note that this might not be a recommended or most optimal way of solving these kinds of issues, but it's how I do it.
My assumption is that it has to do with Elementary being 64-bit
This can indeed be the case. You can ...
Installing Linux on a Mac isn't quite as straightforward as installing it on an older Windows machine, and you need to make a few tweaks in the installation process. You'll need a USB Thumb stick (with at least 8GB of spare space). You will also lose your macOS/OS X installation (we don't recommend trying to dual-boot OS X and Linux, because they use ...
sudo apt install libc6:i386 libncurses5:i386 libstdc++6:i386
Has worked flawlessly on many installs. Below is my full AS installation script if you needed more configuration, particularly KVM for hardware acceleration. The source is from my complete setup script on GitHub Gist
sudo apt update -qq
sudo apt upgrade
Just because your Intel® Core™2 Quad Processor Q6700 supports 64-bit doesn't necessarily mean that it's 64-bit mode supports everything elementary OS requires. Seeing as this is a 2007 CPU, I would guess that some 64-bit modes are not available, likely related to the graphics.
The Mac Mini 1.1 was a Core duo, not a Core 2 Duo, and 32-bit only. It might work with a 32 bit version, but I'm guessing that the slight difference in the architecture might be the problem. From memory, that model Mac Mini didn't have a soldered processor, so you could take out the core 2 and put in a core 2 duo chip instead (check for compatibility first). ...
On ark.intel.com your processor only capable handle 2GB memory RAM is useless if you use 64bit OS, since pointers can take up twice as much space on a 64-bit operating system. You should go with 32bit version.
To create an EFI partition, with GParted:
Create a minimum 100 MB partition formated in fat32 (250MB recomended)
Apply changes (green OK logo)
Select your partition and go into partition -> manage flags, select boot, esp (I don't really know what esp is but it is selected on my efi partition and I have read somewhere that you need it)
Note : The efi ...
Try installing elementary without the internet connection.
Only after you get the os to install, you should troubleshoot your internet connection.
Check this link for details: grub-pc package fails to install