Performance issue with RedirectProcessor.GetRedirects method

[sadunaresh]

there are some 600+ redirect definitions created in Sitecore, it seems to fetch those redirects multiple times in pipeline processor, from our Dynatrace noticed that nearly 1sec is spent towards calling below method during request execution

https://github.com/thecadams/301RedirectModule/blob/a32905f20530056e6c07d3f6e31b1fb600ce7d79/source/Processors/RedirectProcessor.cs#L185

is there a way we can optimize this?