Agreed on perf. Lots of optimization to do, plus I could pre-fetch cache a lot smarter too (it off-screen caches x&y but nothing for the zooms which are the mos

Agreed on perf. Lots of optimization to do, plus I could pre-fetch cache a lot smarter too (it off-screen caches x&y but nothing for the zooms which are the most painful). Thanks for trying it. One thing I do when using it to scan many pages is to put the browser in full screen mode - it really helps.