PDF Commics not working

I NEED HELP! I really like yacreader especialy because of great libray feature. But i i found problem with pdf commics bigger then 40mb, i dont know its my pc or what is solution, but every pdf commic with size more then 40 mb wont load regulary, most pages are blury, or messed up and etc. I try more then 10 commics with sie more then 40 mb and in every one have same problem. Commics with less size work fine and this is problem only with pdf format, cbr work great. i updated my drivers and do everything i can, but i dont know how to solve this. Please help

Could you send me some of those files please? I would like to see what is going on.

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If you're still reading this try the dev version of YACReader in the beta testers forum. It has a new pdf engine that should handle your comics better.