I have been using logviewplus for a couple of years, but I'm very dissatisfied with the product.

Here are some timings I took. These were taken after I had been using the app for a few hours, the folder had 30 log files, totaling 155MB. The operations below are on a 116kb log file (1408 records):
Searching for a string: 15 seconds
Returning to the unfiltered view for the same log file: 5.5 seconds
Warn filter: 5.5 seconds

Initializing UI: 5.5 seconds
Opening a work space with 3 116kb files: 4 seconds
 
I expect all of the above operations to be done within 500 milliseconds. Are you going to take performance seriously at some point or should I look for alternative software?