How does LT perform when the number of rules goes beyond 5000?

I need to check my documents against the rules defined in LT (most are just exact matches). Do I have a performance concern when the total rules go beyond 5000 or even 10000? How long does it take to check a text with about 800 English words (roughly 10,000 characters) against a dictionary of 5000 rules (terms)?

This is a very specific question so I am not sure that anyone will inherently know the answer. You may be best off doing a test to find out. I hope it works out for you!