There are many things that can cause web applications to slow down - too many tabs open, forgetting to shut down your computer every few days, never clearing your cache, etc.
Here are some best practices to follow to make sure your computer is at it's optimal performance:
Shut down your computer every 2-3 days
Delete/uninstall programs you don't use
Delete large files you no longer need (music, movies, etc.)
Clean up hard disk space
Change the power plan of your desktop computer to High Performance
Add more Ram to your computer
Update your computer's software
Delete browser extensions or plugins you don’t use
Remove unused dashboard widgets or gadgets
Stop programs from automatically launching when your computer turns on
How to clear your cache:
On your computer, open Chrome.
At the top right, click More (three vertical dots).
Click More tools > Clear browsing data.
At the top, choose a time range. To delete everything, select All time.
Next to "Cookies and other site data" and "Cached images and files," check the boxes.
Click Clear data.
If your computer is running slow, follow these steps to check your computer's memory usage:
Select the Memory tab, and make sure it's green. If it's in the yellow or red, look at which applications are using the most memory and quit them.
Press Windows Key + R
Type resmon into the search box
Select the Memory tab, and make sure it's below 50%. If it's above 50%, look at which applications are using the most memory and quit them.