Hi, I use a 55in TV for a computer monitor. Currently I'm using a cheap Logitech wireless mouse, which has issues. I'm interested in buying a nicer Razer mouse or equivalent. I tried a Razer Orochi, which is Razer's mobile-centric bluetooth mouse and I like the build quality but it's too small, and there is horrible mouse lag over bluetooth. Wired with USB it was fine. This problem may be unique to my USB bluetooth adapter. Paying $150 for a wireless Mamba is a little too rich for my blood. What do you guys recommend?

Try a USB extension cable with a normal wired mouse. You can run the cable under the carpet or baseboard if you want. I did that and hooked up a USB hub so I have a convenient place to plug things in next to the couch if I want to.