Stuck After Loading Finishes

After opening Garry’s Mod I wait for the green loading bar to finish. 3 seconds after finishing my game freezes for 2-3 minutes … How can I fix this… I was looking online for a solution but there’s nothing. So maybe you can help me fix this thing.

Windows Edition: Windows 10
Install Memory: 6.00 GB RAM
System Type: 64 bit
Processor: Intel Core i5
Graphics Card: Nvidia GeForce 840m

You have to many addons installed if it freezes for that long.