Guys, if you read the patch notes the purpose of this alpha-release is not to make our flying more comfortable or enjoyable but to collect crash-logs and crash-dump files. CTDs of different nature (and specific to user hardware) are hunted and fixed one-by-one as goes from naryv's comment @sukhoi.ru I refer to here
http://forum.1cpublishing.eu/showthread.php?t=31835
They reworked the core of the engine (multi-threading, etc.) that took probably 4-5 months and only now they will start fixing bugs with our feedback. Disappointing ATM because of a long wait but still very promising.
Send crash-reports and logs, post issues at bugtracker and vote for them. It will take time to fix them but the progress is visible if you read the link above.
Please vote to get high-res cockpits back here
http://www.il2bugtracker.com/issues/246