Mikrotik pseudobridge configuration

Hi everybody,

I´ve been doing several tests with my mikrotik (RB951) to connect wirelessly to another router (Router1, with access to internet). The idea is to set up 2 different WLAN´s. Wlan1 from mikrotik is to connect Router1, and Wlan2 is where devices can connect to mikrotik, therefore devices connected to router1 can´t see devices connected to mikrotik.

I did everything through winbox (newbie with Mikrotik). Wlan1 I set up as a repeater (button on the right), and automatically the mode goes to “station pseudobridge”. Every interface is attached or linked to bridge1, and bridge1 is the only interface with an IP address (same range as Router1). Bridge1 has its own dhcp server, to serve Wlan2 and all the ethernet ports. Gateway served by DHCP is either bridge1 ip port or Router1 ip address (I tried both)… either configs has “connectivity”, when Router1 is the gateway is faster than when bridge1 is the gateway.

Now the thing is, even if there is connectivity, the network is quite slow. Ping to 8.8.8.8 sometimes reaches 400ms or 1000ms when Router1 is the gateway. Ping to 8.8.8.8 average is between 16ms to 20ms when Router1 is the gateway, but surfing on the web is really slow. If I do speed test from machines connected to mikrotik, speed test doesn´t begin… etc etc.

Is station pseudobridge the right mode for the mikrotik in order to work on this set up?
Any suggestions or test to improve this?

Thanks in advance for your time.