I have a Lenovo ThinkPad X1 Carbon Gen 5, I successfully installed Big Sur on it, but after the installation the boot time became slower and slower, sometimes it take up to 5 minutes to boot and it stays sluggish for a long time after the boot, the weird thing if I put the Laptop on sleep and wake it up, it starts to behave normal and fast. I don't know if anyone encountered this issue on any other machine or with the same hardware? Where can the issue come from?
My Hardware :
CPU: Intel Core i5-7200U
GPU: Intel HD Graphics 620
RAM: 8 GB DDR3
Motherboard/Laptop Make and Model: Lenovo ThinkPad X1 Carbon Gen 5
Audio Codec: ALC285 (Layout-ID 11)
Ethernet Card: Intel I219-V
Wi-Fi/BT Card: Intel AC 8265
Touchpad and touch display devices: PS/2 (Keyboard) - Synaptics (Touchpad) - No Touch Display Device
BIOS revision: 1.49
Which of the guides on the sidebar you used : Dortania's OpenCore Install Guide
What's working, and what isn't working : Everything is working except the extremely slow boot process even after login screen. Also the Wi-Fi/BT is unstable with OpenIntelWireless drivers.
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