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Hi! Pardon my english. I've been struggling with framerate and perfomance problems with my Y500 laptop for a while now (since I bought this shittop ) Specs: i7 3630QM 8GB GT650M SLI For example, in Counter Strike: Global Offensive, I have very low framerate, and in some maps I encounter very poor perfomance including strange mouselag. When I bought the laptop, CSGO would perfom well: framerate was 200-300 easily at high settings. That was with stock drivers, with Win 8. After I updated my GPU drivers, these perfomance problems started. I rollbacked to driver version 331.82, that was the only working version I tested. When 8.1 came out, the same driver worked well. Now I have Win 10 installed, and I have these frustrating perfomance problems with many games. Like I said, CS:GO performs very poorly, framerate drops below 100 even in well optimized maps like Dust II. If a map has water in it, and I look at the water, I encounter mouselag, what makes the game impossible to play. FPS stays same (70-120 about), but mouselag is horrible. Also, I've tested Crysis 2. I have similar problems with it, but mouselag is the most disturbing thing in that, not actually the framerate. In CS:GO, all settings are low, multicore rendering is enabled (there is no difference if its enabled or disabled). So guys, I beg your help. At the moment I would like to throw my shit Lenovo out of the window , because this is the worst PC I've ever bought. A few notes: Earlier I had also problems with screen tearing, and odd mouselag. I managed to fix that, when I turned v-sync on and then off ingame. Now that does not affect anything. Changing driver versions fixed problems earlier. Does it matter, if my V-Bios versions are different? Framerate is same, no matter if I use SLI or not. Same poor shit perfomance. Energy settings: Checked. Nvidia Control Panel setting is set to perfomance, not adaptive. Also Lenovos own settings is set to perfomance mode, and Windows' too. Yes I use the correct AC adapter. Not OC:d, haven't messed with any hardware settings. Just updated V-bios when 8.1 came out. Overheating is not the problem, cold or hot, same issues. Tried to murder my cat and make a pentagram from its blood, prayed for satan. No help from there. This was also a joke. So long post, I hope you did not TL;DR If you find a solution to this problem, I love you all. -Rikama