LRC 13.1 is all of a sudden so slow

[julies10969562]

Hi friends, 

I'm a photographer and use LRC on almost a daily basis. My computer is a few years old but out of nowhere, LRC has been lagging so bad the last couple of weeks. It literally takes 5 seconds just to toggle to the next image in LRC in Develop mode. I get the spinning beach ball all the time and trying to use the sliders it's so delayed. The rest of my computer works fine, it's just after I've been in LRC for a bit it really starts to slow and the fan on my Mac gets so loud. I have a huge editing deadline I need to finish by Monday and I'm not going to make it at this pace. I've been trying to read other posts about this but nothing seems to help. I've cleaned out my Adobe Cloud storage. Do I have something in my settings wrong? I even called Apple and they said my computer has plenty of RAM, storage, etc to handle LRC. Again, I've been using it for years and haven't changed anything lately to my memory.. Any help or suggestions are greatly appreciated. Here is my system info:

Lightroom Classic version: 13.1 [ 202312111226-41a494e8 ]
License: Creative Cloud
Language setting: en-US
Operating system: Mac OS 13
Version: 13.6.3 [22G436]
Application architecture: x64
Logical processor count: 8
Processor speed: 4.2GHz
SqLite Version: 3.36.0
Built-in memory: 40,960.0 MB
Real memory available to Lightroom: 40,960.0 MB
Real memory used by Lightroom: 8,821.4 MB (21.5%)
Virtual memory used by Lightroom: 53,021.1 MB
Memory cache size: 690.3MB
Internal Camera Raw version: 16.1 [ 1728 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 1622MB / 20479MB (7%)
Camera Raw real memory: 2121MB / 40960MB (5%)
Standard Preview Size: 5120 pixels
Displays: 1) 5120x2880

Graphics Processor Info:
Metal: AMD Radeon Pro 580
Init State: GPU for Export supported by default
User Preference: Auto

[dj_paige]

... it's just after I've been in LRC for a bit it really starts to slow and the fan on my Mac gets so loud. I have a huge editing deadline I need to finish by Monday and I'm not going to make it at this pace.

Your computer is generating a lot of heat, that's what causes the fans to come on, and then the computer throttles back its operations (which seems to you like it is frozen or paused for a few seconds) to prevent it from overheating. The fact that this is a new symptom indicates your cooling system is failing, perhaps one of the fans in the computer has stopped working, or the air vents on the computer are clogged, or there is dust inside the computer case. Open the case, make sure all fans are working, vaccuum out the case and make sure the air vents are vaccuumed and clear.

If your computer is a laptop, consider getting an external laptop cooling device.